| Date | Panel | Item | Activity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| COVID-19 research v1.139 | IKBKB | Arina Puzriakova Added comment: Comment on mode of inheritance: Updated from 'biallelic' to 'both mono- and biallelic' as both inheritance patterns are associated with a relevant phenotype of primary immunodeficiency, but AR disease is more severe with earlier onset. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.138 | IL21R | Arina Puzriakova Phenotypes for gene: IL21R were changed from Combined immunodeficiency; Atypical Severe Combined Immunodeficiency (Atypical SCID); Immunodeficiency 56, 615207; Immunodeficiencies affecting cellular and humoral immunity; Omenn syndrome; Immunodeficiency, primary, autosomal recessive, IL21R-related; IL-21R deficiency; Severe combined immunodeficiency (SCID); Recurrent infections, Pneumocystis jiroveci, Cryptosporidium infections and liver disease to Immunodeficiency 56, OMIM:615207; Atypical Severe Combined Immunodeficiency (Atypical SCID); Combined immunodeficiency; Omenn syndrome; Recurrent infections, Pneumocystis jiroveci, Cryptosporidium infections and liver disease; Immunodeficiencies affecting cellular and humoral immunity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.133 | ADAR | Arina Puzriakova Phenotypes for gene: ADAR were changed from Fever Syndromes and Related Diseases, Aicardi-Goutieres syndrome 6, 615010; Type 1 interferonopathies; Autoinflammatory Disorders; AGS6; Classical AGS, BSN, SP to Aicardi-Goutieres syndrome 6, OMIM:615010; Fever Syndromes and Related Diseases; Type 1 interferonopathies; Autoinflammatory Disorders | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.114 | KIR2DL2 | Eleanor Williams changed review comment from: Ensembl identifier not available for GRCh38 (release 90). On GRCh it is on a patch chromosome so chromosome location not added.; to: Ensembl identifier not available for GRCh38 (release 90). On GRCh37 it is on a patch chromosome so chromosome location not added. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.81 | CNBP | Arina Puzriakova Added comment: Comment on mode of inheritance: Lack of phenotypic relevance for SNVs - nucleotide repeat expansion mechanism | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.54 | IFNG | Sarah Leigh Added comment: Comment on list classification: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. Two promoter variants are associated with viral susceptibility and response to therapy; c.-179G>T (RCV000015845.26) with accelerated progression to AIDS (PMID 12854077) and c.-764C>G (rs2069707) with enhanced promoter activity and increased viral clearance and treatment response in hepatitis C virus infection (PMID 17215375). The A allele of rs2430561 is associate with susceptibility to Hepatitis B virus infection (PMID 26458193). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.37 | NUP214 |
Sarah Leigh changed review comment from: NUP214 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility); to: NUP214 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility). Illumina review: PMID 31178128: Fichtman et al. (2019) reported four patients from two unrelated families with fever-induced, partially reversible acute encephalopathy and regression, progressive microcephaly, and brain atrophy. Febrile episodes were associated with viral infections. Exome sequencing identified that both affected individuals from family A were homozygous for the NUP214 NM_005085.3; c.112C>T (p.Arg38Cys) missense variant. A frameshift variant, c.1574delC (p.Pro525LeufsTer6) and a missense variant c.1159C>T (p.Pro387Ser), found in a compound heterozygous state were identified in the NUP214 gene in the two affected individuals from family B. The missense variants affected highly conserved residues and were present at a low frequency in gnomAD. Functional studies on primary skin fibroblasts derived from one case (family A1) supported pathogenicity of the p.Arg38Cys variant; NUP214 and NUP88 protein levels were reduced in while the total number and density of nuclear pore complexes remained normal. Nuclear transport assays revealed defects in the classical protein import and mRNA export pathways in affected cells. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.34 | IL4R |
Sarah Leigh changed review comment from: IL4R was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility); to: IL4R was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility). "Illumina review: IL4R (interleukin 4 receptor), encodes the alpha chain of the interleukin-4 receptor [29], is a type I transmembrane protein that can bind both IL-4 (interleukin 4) and IL-13 (interleukin13) to regulate IgE production. From OMIM: PMID: 16189667 Soriano et al. (2005) By analysis of IL4R allele and genotype frequencies in individuals with different risk factors for human immunodeficiency virus (HIV) acquisition and different rates of progression to acquired immunodeficiency syndrome (AIDS), Soriano et al. (2005) determined that the V50 allele predominated in HIV-positive long-term nonprogressors (LTNPs), whereas the I50 allele predominated in healthy controls, typical progressors, and those at risk for infection due to sexual exposure or treatment of hemophilia. Homozygosity for V50 was increased in LTNPs compared with other groups. Soriano et al. (2005) concluded that V50 homozygosity appears to be associated with slow progression to AIDS after HIV infection. PMID: 30228077: Useche et al.(2019) A case-control study to evaluate possible associations between SNPs in IL4R and IL6R genes and clinical dengue in children from two Colombian populations, Huila and Antioquia. The study included 298 symptomatic children and 648 asymptomatic controls. The IL4R-rs1805016 GG genotype associated with clinical dengue in the pooled and Huila samples. No association of these polymorphisms in the sample of Antioquia. PMID: 29287219: Yu et al. (2018) Fifty-five chronic hepatitis B (CHB) patients, fifty-three self-healing HBV (SH) patients and 53 healthy controls (HC) were recruited, 404 cytokine and cytokine receptor related genes sequenced using NGS. The authors suggest that the IL4R SNPs; rs1805012 (p.Cys431Arg) and rs1805011 (p.Glu400Ala) are associated with chronic hepatitis B, there was no significant difference between the frequency of these variants between the CHB patients and the SH patients. PMID: 31141539 Naget et al. EBV infection represses IL4R expression. Isolated EBV-positive and EBV-negative subclones from the DLBCL derived cell line DOHH-2 showed that EBV-encoded factors LMP1 and LMP2A activated the expression of HLX via STAT3. HLX in turn repressed NKX6-3, SPIB and IL4R which normally mediate plasma cell differentiation. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.32 | IL18BP | Sarah Leigh Phenotypes for gene: IL18BP were changed from Defects in intrinsic and innate immunity; IL-18BP deficiency; inborn errors of immunity related to leukocytes to {?Hepatitis, fulminant viral, susceptibility to} 618549; Defects in intrinsic and innate immunity; IL-18BP deficiency; inborn errors of immunity related to leukocytes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.21 | CX3CR1 |
Sarah Leigh changed review comment from: CX3CR1 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility); to: CX3CR1 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility). Illumina review: Receptor for the CX3C chemokine fractalkine (CX3CL1); binds to CX3CL1 and mediates both its adhesive and migratory functions. Acts as coreceptor with CD4 for HIV-1 virus envelope protein (in vitro) (PMID:9726990). Associated with rapid progression to AIDS from HIV1 infection. PMID:14607932: Garin et al. (2003) - identified two novel isoforms of the human chemokine receptor CX3CR1, produced by alternative splicing that appear to be more potent HIV coreceptors. PMID:10731151: Faure et al. (2000) - CX3CR1 is an HIV coreceptor as well as a leukocyte chemotactic/adhesion receptor for fractalkine. Faure et al. (2000) identified 2 single nucleotide polymorphisms in the CX3CR1 gene in Caucasians and demonstrated that HIV-infected patients homozygous for I249/M280 progressed to AIDS more rapidly than those with other haplotypes (relative risk = 2.13, P = 0.039). Functional CX3CR1 analysis showed that fractalkine binding is reduced among patients homozygous for this particular haplotype. Concluded that CX3CR1-I249/M280 is a recessive genetic risk factor for HIV/AIDS. PMID 28228284: Zhivaki et al. (2017) - Upregulated in RSV infection affecting severity of infection. Respiratory syncytial virus (RSV) is the major cause of lower respiratory tract infections in infants and is characterized by pulmonary infiltration of B cells in fatal cases. Identified a population of neonatal regulatory B lymphocytes (nBreg cells) that produced interleukin 10 (IL-10) in response to RSV infection. The polyreactive B cell receptor of nBreg cells interacted with RSV protein F and induced upregulation of chemokine receptor CX3CR1. CX3CR1 interacted with RSV glycoprotein G, leading to nBreg cell infection and IL-10 production that dampened T helper 1 (Th1) cytokine production. In the respiratory tract of neonates with severe RSV-induced acute bronchiolitis, RSV-infected nBreg cell frequencies correlated with increased viral load and decreased blood memory Th1 cell frequencies. Thus, the frequency of nBreg cells is predictive of the severity of acute bronchiolitis disease and nBreg cell activity may constitute an early-life host response that favors microbial pathogenesis. PMID unavailable: Strickland et al. (2020) - Pulmonary infection with C. neoformans (opportunistic fungal pathogen and leading cause of death in HIV-affected inividuals) enhanced CX3CR1 expression in the lung. Following infection, mice lacking CX3CR1 had significantly higher pulmonary fungal burdens, as well as decreased survival times compared to wild type mice. These infected CX3CR1 knockout mice also displayed higher expression of pro-inflammatory cytokines including MIP-2, MCP-1 and CCL7, but lower expression of anti-inflammatory cytokines such as IL-10. CX3CR1 deficiency resulted in mice having dramatically enhanced neutrophil accumulation in the lungs following infection.Depletion of neutrophils drastically improved lung CFU in infected knockout mice, indicating that excessive inflammation drove fungal growth. These data indicate that CX3CR1 expression is essential for host resistance to pulmonary cryptococcal infection by inhibiting excessive lung inflammation. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.19 | CPT2 |
Sarah Leigh changed review comment from: CPT2 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility); to: CPT2 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility). "Illumina review: Evidence suggests that susceptibility to infection-induced acute encephalopathy-4 (IIAE4) is conferred by heterozygous or homozygous variation in the CPT2 gene on chromosome 1p32. PMID:20934285: Shinohara et al. (2011) - found 352C variant at a significantly higher frequency in 29 Japanese patients with IIAE compared to controls. Pathogens included influenza, adenovirus, HHV6. mycoplasma and rotovirus. No correlation between good and poor prognosis. PMID: 21697855: Mak et al. (2011) - Showed heterozygosity for the CPT2 F352C variant and homozygosity for the CPT2 V368I variant in two unrelated Chinese individuals with fatal virally-induced acute encephalopathy. PMID: 15811315: Chen et al. (2005) - thermolabile phenotype of compound heterozygotes for F352C and V368I which showed a higher frequency in Japanese influenza-associated encephalopathy patients than healthy volunteers. PMID 18306170: Yao et al. (2008) - large proportion of patients suffering from disabling or fatal IAE, with transiently elevated serum acylcarnitine during high fever, exhibit a thermolabile phenotype of compound homozygous/heterozygous variants in CPT2. Among the variants, three compound variations found in patients with severe encephalopathy; [c.1055T>G (p.Phe352Cys); c.1102G>A (p.Val368Ile)], [c.1511C>T (p.Pro504Leu); c.1813G>C (p.Val605Leu)], and [c.1055T>G (p.Phe352Cys); c.1102G>A (p.Val368Ile); c.1813G>C (p.Val605Leu)], showed reduced activities, thermal instability, and short half-lives compared with the wild type. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.16 | CIB1 |
Sarah Leigh changed review comment from: CIB1 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility); to: CIB1 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 1 grouping (clear GDA/viral susceptibility). "Illumina review: From OMIM: Susceptibility to epidermodysplasia verruciformis-3 is conferred by homozygous variation in the CIB1 gene. Epidermodysplasia verruciformis-3 is characterized by onset in childhood or early adulthood of persistent disseminated flat warts and pityriasis versicolor-like lesions of the skin that are induced by cutaneous human papillomaviruses (HPVs) of the beta genus. Some patients develop nonmelanoma skin cancer, particularly on areas of the body exposed to the sun. Patients are otherwise healthy and normally resistant to other microorganisms, including other viruses and skintropic pathogens, and even all other cutaneous and mucosal HPVs. Gene:disease relationship with autosomal recessive epidermodysplasia verruciformis curated using the ClinGen framework for gene curation. The CIB1 gene is located on chromosome 15 at 15q26.1 and encodes calcium and integrin binding 1. This protein forms a complex with the products of the TMC6 (EVER1) and TMC8 (EVER2) genes. The CIB1/EVER1/EVER2 complex acts to restrict transcription of human papillomaviruses. The CIB1 gene was first reported in relation to autosomal recessive epidermodysplasia verruciformis in 2018 (PMID: 300068544). Five unique homozygous variants in this gene were reported in at least five probands including two frameshift, one stop-gained, one stop-lost, and one canonical splice variant. The evidence supporting the GDR includes segregation data - linkage analysis across three unrelated families of differing geographic origin resulted in a LOD score of 16.7. This gene-disease relationship is also supported by expression data and a shared biochemical function with additional genes that are also associated with the disease (PMID: 300068544). In summary, the GDR between CIB1 and autosomal recessive epidermodysplasia verruciformis is classified as strong using the ClinGen framework. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.14 | CCR5 |
Sarah Leigh changed review comment from: CCR5 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility); to: CCR5 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility). Illumina review: Cytokine receptor. From OMIM: Variation in the CCR5 gene is associated with susceptibility to West Nile Virus (PMID 16230476;21935451;19247438). Numerous studies additionally demonstrate variation in CCR5 is associated with resistance / susceptibility to HIV and HBV infection. PMID 24098976: Zapata et al. (2013) - main genetic factor related to HIV-1 resistance is the CCR5-Δ32 variant. The CCR5-Δ32 variant along with SNPs in the CCR5 promoter and the CCR2-V64I variant have been included in seven human haplogroups (HH) previously associated with resistance/susceptibility to HIV-1 infection and different rates of AIDS progression. This study determined the association of the CCR5 promoter SNPs, the CCR5-Δ32 mutation, CCR2-V64I SNP, and HH frequencies with resistance/susceptibility to HIV-1 infection in a cohort of HIV-1-serodiscordant couples from Colombia. The CCR5-Δ32 allele is not responsible for HIV-1 resistance in this HESN group; however, the CCR2-I allele could be protective, while the 29G allele might increase the likelihood of acquiring HIV-1 infection. HHG1 and the AGACCAC-CCR2-I-CCR5 wild-type haplotype might promote HIV-1 infection while HHF2 might be related to resistance. PMID 31686727: Moudi et al. (2019) - study evaluated the association between the CCR5-Δ32, CCR5-2459A/G, MCP-1-2518A/G, VDR-APa1A/C, VDR-Taq1T/C SNPs and HBV susceptibility, in samples of Iranian populations. Significant associations with susceptibility to chronic HBV infection was observed with CCR5-2459A/G, MCP1-2518A/G, VDR-APa1A/C, VDR-Taq1T/C polymorphisms. In addition, no association of the CCR5D32 SNP with the disease was found. PMID:31100442 - Koor et al. (2019) - 9 CCR5 haplotypes are defined by seven 5'UTR SNPs in HIV-1 disease. Study identified key SNPs in HIV-1 control in both controllers and progressors. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.12 | CCL11 |
Sarah Leigh changed review comment from: CCL11 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility); to: CCL11 was identified through an OMIM search for potential viral susceptibility genes. Initial triage by Illumina (Alison Coffey and team) was given a Tier 3 grouping (experimental evidence and association data consistent with viral susceptibility). Illumina review: CCL11 is a cytokine released in response to viral infections. No evidence found of SNPs in association with SARS-CoV-2 infection. From OMIM: PMID: 14571188: Modi et al. (2003) identified 3 SNPs that formed a 31-kb haplotype (H7) spanning the CCL2-CCL7-CCL11 gene cluster on chromosome 17q. The SNPs and the H7 haplotype were significantly associated with protection from HIV-1 infection. PMID:30915442: Hoffman et al. (2019) - West Nile virus infection outcome vary among individuals with most infections resulting in asymptomatic or mild-flu like symptoms. WNV-infected females reported more symptoms than males. Males were shown to exibit a protracted cytokine response including CCL11 (and CCL2, CXCL10 and IL-15) that was absent in females. PMID:32416070: Blanco-Melo et al. (2020) - look at the transcriptional response to SARS-CoV-2 compared to other respiratory viruses. Cell and animal models of SARS-CoV-2 infection, in addition to transcriptional and serum profiling of COVID-19 patients, consistently revealed a unique and inappropriate inflammatory response. This response is defined by low levels of type I and III interferons juxtaposed to elevated chemokines and high expression of IL-6. SARS-CoV-2 shown to induce robust levels of chemokines including CCL2, CCl8 and CCL11 (Figure 4A). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v1.1 | DAG1 |
Rebecca Foulger changed review comment from: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): The DAG1 gene encodes 2 dystroglycan proteins, both of which are dystrophin-associated glycoproteins (DAGs) (OMIM:128239). Alpha-Dystroglycan (a-DG) is a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus (Imperiali et al. 2005; Kunz et al. 2009; Rojek et al. 2007). PubMed 16254364: Imperiali et al. (2005) - alpha-Dystroglycan (a-DG) was identified as a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus. Arenaviruses are enveloped, single-stranded RNA viruses with a bisegmented ambisense genome. Susceptibility toward LCMV infection differed in various cell lines despite them expressing comparable levels of DG, suggesting that posttranslational modifications of a-DG would be involved in viral receptor function. Demonstrated that glycosylation of a-DG, and in particular, O mannosylation, which is a rare type of O-linked glycosylation in mammals, is essential for LCMV receptor function. Cells that are defective in components of the O-mannosylation pathway showed strikingly reduced LCMV infectibility. As defective O mannosylation is associated with severe clinical symptoms in mammals such as congenital muscular dystrophies, it is likely that LCMV and potentially other arenaviruses may have selected this conserved and crucial posttranslational modification as the primary target structure for cell entry and infection. PMID 19324387: Kunz et al. (2009) - Old World arenaviruses LCMV (lymphocytic choriomeningitis virus) and LASV (Lassa virus) enter the host cell predominantly via a novel and unusual endocytotic pathway independent of clathrin, caveolin, dynamin, and actin. Infection of cells with LCMV and LASV depends on DG, this unusual endocytotic pathway could be related to normal cellular trafficking of the DG complex. Arenavirus particles may target DG for an endocytotic pathway not normally used in uninfected cells thereby inducing an entry route specifically tailored to the pathogen's needs. PMID 17360738: Rojek et al. (2007) - Found that protein O mannosylation of α-DG is crucial for the binding of arenaviruses of distinct phylogenetic origins, including LFV, Mobala virus, and clade C New World arenaviruses. Observed that overexpression of LARGE in cells deficient in O mannosylation resulted in highly glycosylated α-DG that was functional as a receptor for arenaviruses. Demonstrate that arenaviruses recognize the same highly conserved O-glycan structures on α-DG involved in ECM protein binding, indicating a strikingly similar mechanism of receptor recognition by pathogen- and host-derived ligands. PMID 21185048: Oldstone et al. (2011) - Dendritic cells (DC)s express the highest levels of α-DG and are the sentinel cells that LCMV, and presumably also LFV, infect. The resultant infection of DCs compromises DC function. Determinant of injury is the displacement of laminin or other ECM molecules that bind to the same site on α-DG that LCMV and LFV seek. When ECM molecules are pushed aside, the virus destabilizes membranes and causes interference with ECM signals that are required to maintain homeostasis. PMID 15857984: Kunz et al. (2005) Show that LFV (Lassa fever virus) binds to α-DG with high affinity in the low-nanomolar range. Recombinant vesicular stomatitis virus pseudotyped with LFV glycoprotein (GP) adopted the receptor binding characteristics of LFV and depended on α-DG for infection of cells. LFV was found to efficiently compete with laminin α1 and α2 chains for α-DG binding. LCMV uses the same domains of α-DG for binding that are used in LFV binding. Findings indicate a high degree of conservation in the receptor binding characteristics between the highly human-pathogenic LFV and murine-immunosuppressive LCMV isolates.; to: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): The DAG1 gene encodes 2 dystroglycan proteins, both of which are dystrophin-associated glycoproteins (DAGs) (OMIM:128239). Alpha-Dystroglycan (a-DG) is a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus (Imperiali et al. 2005; Kunz et al. 2009; Rojek et al. 2007). PubMed 16254364: Imperiali et al. (2005) - alpha-Dystroglycan (a-DG) was identified as a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus. Arenaviruses are enveloped, single-stranded RNA viruses with a bisegmented ambisense genome. Susceptibility toward LCMV infection differed in various cell lines despite them expressing comparable levels of DG, suggesting that posttranslational modifications of a-DG would be involved in viral receptor function. Demonstrated that glycosylation of a-DG, and in particular, O mannosylation, which is a rare type of O-linked glycosylation in mammals, is essential for LCMV receptor function. Cells that are defective in components of the O-mannosylation pathway showed strikingly reduced LCMV infectibility. As defective O mannosylation is associated with severe clinical symptoms in mammals such as congenital muscular dystrophies, it is likely that LCMV and potentially other arenaviruses may have selected this conserved and crucial posttranslational modification as the primary target structure for cell entry and infection. PMID 19324387: Kunz et al. (2009) - Old World arenaviruses LCMV (lymphocytic choriomeningitis virus) and LASV (Lassa virus) enter the host cell predominantly via a novel and unusual endocytotic pathway independent of clathrin, caveolin, dynamin, and actin. Infection of cells with LCMV and LASV depends on DG, this unusual endocytotic pathway could be related to normal cellular trafficking of the DG complex. Arenavirus particles may target DG for an endocytotic pathway not normally used in uninfected cells thereby inducing an entry route specifically tailored to the pathogen's needs. PMID 17360738: Rojek et al. (2007) - Found that protein O mannosylation of α-DG is crucial for the binding of arenaviruses of distinct phylogenetic origins, including LFV, Mobala virus, and clade C New World arenaviruses. Observed that overexpression of LARGE in cells deficient in O mannosylation resulted in highly glycosylated α-DG that was functional as a receptor for arenaviruses. Demonstrate that arenaviruses recognize the same highly conserved O-glycan structures on α-DG involved in ECM protein binding, indicating a strikingly similar mechanism of receptor recognition by pathogen- and host-derived ligands. PMID 21185048: Oldstone et al. (2011) - Dendritic cells (DC)s express the highest levels of α-DG and are the sentinel cells that LCMV, and presumably also LFV, infect. The resultant infection of DCs compromises DC function. Determinant of injury is the displacement of laminin or other ECM molecules that bind to the same site on α-DG that LCMV and LFV seek. When ECM molecules are pushed aside, the virus destabilizes membranes and causes interference with ECM signals that are required to maintain homeostasis. PMID 15857984: Kunz et al. (2005) show that LFV (Lassa fever virus) binds to α-DG with high affinity in the low-nanomolar range. Recombinant vesicular stomatitis virus pseudotyped with LFV glycoprotein (GP) adopted the receptor binding characteristics of LFV and depended on α-DG for infection of cells. LFV was found to efficiently compete with laminin α1 and α2 chains for α-DG binding. LCMV uses the same domains of α-DG for binding that are used in LFV binding. Findings indicate a high degree of conservation in the receptor binding characteristics between the highly human-pathogenic LFV and murine-immunosuppressive LCMV isolates. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.366 | TPH1 | Sarah Leigh Added comment: Comment on list classification: Not associated with relevant phenotype in OMIM or in Gen2Phen. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.362 | TNFSF4 | Sarah Leigh Added comment: Comment on list classification: Not associated with relevant phenotype in OMIM or in Gen2Phen. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.349 | DAG1 |
Rebecca Foulger commented on gene: DAG1: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): The DAG1 gene encodes 2 dystroglycan proteins, both of which are dystrophin-associated glycoproteins (DAGs) (OMIM:128239). Alpha-Dystroglycan (a-DG) is a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus (Imperiali et al. 2005; Kunz et al. 2009; Rojek et al. 2007). PubMed 16254364: Imperiali et al. (2005) - alpha-Dystroglycan (a-DG) was identified as a common receptor for lymphocytic choriomeningitis virus (LCMV) and several other arenaviruses including the human pathogenic Lassa fever virus. Arenaviruses are enveloped, single-stranded RNA viruses with a bisegmented ambisense genome. Susceptibility toward LCMV infection differed in various cell lines despite them expressing comparable levels of DG, suggesting that posttranslational modifications of a-DG would be involved in viral receptor function. Demonstrated that glycosylation of a-DG, and in particular, O mannosylation, which is a rare type of O-linked glycosylation in mammals, is essential for LCMV receptor function. Cells that are defective in components of the O-mannosylation pathway showed strikingly reduced LCMV infectibility. As defective O mannosylation is associated with severe clinical symptoms in mammals such as congenital muscular dystrophies, it is likely that LCMV and potentially other arenaviruses may have selected this conserved and crucial posttranslational modification as the primary target structure for cell entry and infection. PMID 19324387: Kunz et al. (2009) - Old World arenaviruses LCMV (lymphocytic choriomeningitis virus) and LASV (Lassa virus) enter the host cell predominantly via a novel and unusual endocytotic pathway independent of clathrin, caveolin, dynamin, and actin. Infection of cells with LCMV and LASV depends on DG, this unusual endocytotic pathway could be related to normal cellular trafficking of the DG complex. Arenavirus particles may target DG for an endocytotic pathway not normally used in uninfected cells thereby inducing an entry route specifically tailored to the pathogen's needs. PMID 17360738: Rojek et al. (2007) - Found that protein O mannosylation of α-DG is crucial for the binding of arenaviruses of distinct phylogenetic origins, including LFV, Mobala virus, and clade C New World arenaviruses. Observed that overexpression of LARGE in cells deficient in O mannosylation resulted in highly glycosylated α-DG that was functional as a receptor for arenaviruses. Demonstrate that arenaviruses recognize the same highly conserved O-glycan structures on α-DG involved in ECM protein binding, indicating a strikingly similar mechanism of receptor recognition by pathogen- and host-derived ligands. PMID 21185048: Oldstone et al. (2011) - Dendritic cells (DC)s express the highest levels of α-DG and are the sentinel cells that LCMV, and presumably also LFV, infect. The resultant infection of DCs compromises DC function. Determinant of injury is the displacement of laminin or other ECM molecules that bind to the same site on α-DG that LCMV and LFV seek. When ECM molecules are pushed aside, the virus destabilizes membranes and causes interference with ECM signals that are required to maintain homeostasis. PMID 15857984: Kunz et al. (2005) Show that LFV (Lassa fever virus) binds to α-DG with high affinity in the low-nanomolar range. Recombinant vesicular stomatitis virus pseudotyped with LFV glycoprotein (GP) adopted the receptor binding characteristics of LFV and depended on α-DG for infection of cells. LFV was found to efficiently compete with laminin α1 and α2 chains for α-DG binding. LCMV uses the same domains of α-DG for binding that are used in LFV binding. Findings indicate a high degree of conservation in the receptor binding characteristics between the highly human-pathogenic LFV and murine-immunosuppressive LCMV isolates. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.349 | CXCL8 |
Rebecca Foulger commented on gene: CXCL8: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): • CXCL8 is a proinflammatory chemokine that plays a role in inflammatory response and immune cell trafficking • Multiple studies show IL-8 levels were shown to be elevated in plasma of patients with COVID-19, SARS-CoV, or MERS-CoV compared to controls. These include a number of recent COVID-19 studies (Coperchini et al. 2020). • Higher levels were detected in more severe cases (Gong et al. 2020; Qin et al. 2020; Yan et al. 2020), although one study shows the levels are within the normal range (Qin et al. 2020) • Gong et al. (2020) suggest that IL-8 might be a therapeutic target COVID-19 Literature: PMID 32446778; Coperchini et al. (2020) • Review article describing the involvement of chemokine/chemokine-receptor system in COVID-19 • Discusses the concept of cytokine storm where the immune system is ‘attacking’ the body resulting in acute respiratory distress syndrome. • Multiple studies are mentioned that show high levels of CXCL8 in the plasma and broncho-alveolar fluid in patients with acute respiratory distress syndrome. Reference a paper that notes that pre-treatment with an anti-CXCL8 antibody prevented acute lung injury that generally develops. • In vivo studies showed elevated CXCL8 in patients with SARS-CoV. • In vitro studies where peripheral blood mononuclear cells from healthy donor inoculated with SARS-CoV showed enhancement in the expression of CXCL8 • Similarly, CXCL8 was upregulated in cells lysates when with MERS-CoV infection of polarized airway epithelial cells (higher expression than SARS-CoV). • Higher plasma levels of CXCL8 in patients with COVID-19 compared to healthy controls; however, transcription of CSCL8 was not upregulated MedRxiv; Gong et al. (2020) • Evaluated disease severity in a total of 100 patients with COVID-19 pneumonia • CXCL8 (IL-8 in this paper) was detected in these patients and IL-8 levels were shown to be associated with disease severity (P<0.001); significant differences were noted between critical and severe patients or critical and mild groups (Tables 2 and 3) • Suggest that IL-8 might be a therapeutic target COVID-19 PMID 32161940; Qin et al. (2020) • Retrospective study of 452 patients with COVID-19; severity of COVID-19 defined according to the Fifth Revised Trial Version of the Novel Coronavirus Pneumonia Diagnosis and Treatment Guidance • Clinical and laboratory data were collected • A majority of the severe cases (n=286) had elevated levels of IL-8 (18.4 pg/mL vs 13.7 pg/mL, respectively; p<0.001) compared to the nonsevere cases (n=166), although they were all in the normal (0-62.0 pg/mL) (Table 2) MedRxiv; Yan et al. (2020) • Identified 25 genes that showed highly conserved kinetics in COVID-19 patients • Figure 3F shows expression of CXCL8 and plasma levels of IL-8 from four individuals with COVID-19 compared to four healthy controls was higher in patients especially in the severe stage (p<0.001) PMID 15585888; Chang et al. (2004) • Introduction has a summary of previously published papers and notes that high serum levels of IL-8 were detected during acute phase and associated with lung lesions in patients with SARS in one study. Another study suggests use of corticosteroids in reducing pulmonary inflammation due to IL-8. • Chang et al. (2004) used transient transfection of the SARS-CoV S protein-encoding plasmid on the IL-8 promoter. Measure of IL-8 release in lung cells showed an upregulation of IL-8 release. In addition, a specific region of the S protein was identified as a potentially important region for inducing IL-8 release. There are additional case-control studies suggesting possible association of polymorphisms in CXCL8 and acute bronchiolitis susceptibility (Pinto et al. 2017; PMID 27890033), asthma (Charrad et al. 2017; PMID 28993876), or human papillomavirus infection (weaker evidence; Junior et al. 2016; PMID 27783717). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.349 | VPS11 |
Rebecca Foulger commented on gene: VPS11: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): The VPS11 gene encodes a protein which is part of the homotypic fusion and vacuole protein-sorting (HOPS) complex that mediates fusion of endosome and lysosomes; VPS11 is involved in late-stage endosome to lysosome maturation. In HAP1 cells mutagenized with a retroviral gene-trap vector, mutations in VSP11 were enriched in Ebola virus-resistant cells. In addition, VPS11-deficient cells showed resistance to Ebola and Marburg virus compared to controls. Escape of the Ebola virus to the cytoplasm was blocked in VPS11-deficient cells (Carette et al. 2011). In HeLa cells RNAi downregulation of VPS11 showed decreased relative percentage infection with mouse hepatitis coronavirus (MHV) and feline infectious peritonitis virus, with a larger effect for MHV (Burkard et al. 2014). Similarly, in HEK293 cells, luciferase activity of Ebola virus and SARS-CoV-S were reduced in siRNA downregulated VPS11 cells (Zhou et al. 2016). PMID 21866103; Carette et al. (2011) - Used retroviral gene-trap vector to mutagenize HAP1 cells. Identified genes enriched for mutations in vesicular stomatitis virus bearing the EboV glycoprotein (rVSV-GP-EboV)-resistant cells. Enriched for mutations in VPS11 as well as other subunits of the HOPS complex (six subunits including VPS11), which mediates fusion of endosome and lysosomes; VPS11 is involved in late-stage endosome to lysosome maturation. In addition, VPS11-deficient cells (using gene-trap insertions) showed resistance to infection with Marburg virus or Ebola virus (Figures 1C and Figure S4C) compared to controls. Ebola virus escape to the cytoplasm is blocked in VPS11-deficient cells compared to WT (Figure 3D) PMID 25375324; Burkard et al. (2014) - Evaluated entry of mouse hepatitis coronavirus (MHV) in HeLa cells with GFP-expressing MHV RNAi mediated downregulation of VPS11 (using three different siRNAs) showed the percentage of relative infection was reduced compared to negative siRNA controls (Figure 1C). Luciferase expressing feline infectious peritonitis virus (FIPV) was also evaluated in HeLa cells and RNAi mediated downregulation of VPS11 showed reduced relative infection for two of three siRNAs compared to negative siRNA controls (Figure 10) PMID 26953343; Zhou et al. (2016) - Study to evaluate effects of antibiotics on proteins involved in virus entry. SiRNA-mediated knockdown of VSP11 expression showed decreased relative luciferase activity in HEK293 cells infected with Ebola virus or SARS-CoV-S, but not with vesicular stomatitis virus. In addition, treatment with the glycopeptide antibiotic teicoplanin did not show an effect on the HOPS complex |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.349 | RNASEL |
Rebecca Foulger commented on gene: RNASEL: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): RNASEL, also known as 2-5A-dependent RNase is a component of the interferon-regulated 2-5A system that functions in the antiviral interferon pathway. Treatment of cells with interferon results in enhanced levels of both 2-5A-dependent RNase and a group of synthetases that produce 5-prime-triphosphorylated, 2-prime,5-prime-oligoadenylates (2-5A) from ATP. The role of the 2-5A system in the control of viral and cellular growth suggests that defects in the 2-5A-dependent RNase gene could result in reduced immunity to virus infections and cancer (Hassel et al., 1993). Several studies aiming to identify a genetic association between RNASEL and viral susceptibility have failed to identified statistically significant SNPs (Yakub et al. 2005; Arredondo et al. 2012). However, there is sufficient experimental evidence, including a mouse model and in-vitro studies that RNASEL is an important contributor in host defence against several viruses (Gusho et al. 2016 (review); Zhou et al. 1997; Panda et al. 2019). PMID 27595182: Gusho et al. 2016 (review) - RNase L is a unique IFN-regulated endoribonuclease that serves as an important mediator of antiviral innate immunity with possible roles in antibacterial defense and prostate cancer. It is controlled by IFN-inducible oligo-adenylate synthetases (OASs) and double-stranded RNAs (dsRNAs). OAS-RNase L (Fig. 1) pathway, discovered in the mid-1970s, was one of the first IFN-dependent antiviral pathways to be characterized. OASs are IFN-I/-III-inducible genes that are expressed at very low basal levels in many cell types. OASs1-3 act as pathogen recognition receptors that sense dsRNAs and activate the synthesis of 5’-phosphorylated 2’-5’ linked oligoadenylates from ATP (2-5A). 2-5A acts as a second messenger and binds monomeric RNase L, and activates its dimer formation. Active RNase L cleaves cellular and viral RNAs within single-stranded regions. RNA degradation directly and indirectly activates subsequent events, including the elimination of viral genomes, inhibition of cellular and viral protein synthesis; and activation of several cellular signaling pathways, including those involved in autophagy, apoptosis, senescence, IFN-b production, and NLRP3-inflammasome activation as part of its antiviral mechanism (references provided). Authors state that many viruses have evolved or acquired strategies that antagonize the OAS-RNase L pathway to evade antiviral innate immunity. Some, such as Influenza A (IAV), HSV and Vaccinia virus act through an RNA-binding domain which binds to and sequesters dsRNA, the activator of OAS. Others bind directly to monomeric RNase L preventing it from activation by dimerization. Some coronaviruses (MERS-CoV and MHV) are described to act through their ns-domains with 2’-5’ PDE activity that degrades 2-5A and thus prevent activation of RNase L. Some additional evidence of interest: -OAS3 was shown to exert antiviral activity against Dengue virus in an RNase L-dependent manner, indicating that OAS3 synthesizes active 2-5A in sufficient amounts for RNase L activation -RNase L activation by dsRNA signaling or viral infection contributes to IFN-b production, indicating its important role in innate immunity. The ribonuclease function of RNase L is essential for its effect on IFN-b production -Moreover, mice deficient in RNase L had several-fold reduced levels of IFN-b induction after infection with RNA viruses (EMCV and Sendai virus) -Stable expression of wild-type human full-length RNase L, but not ribonuclease dead mutant (R667A), activates IL-1b and caspase 1 secretion in RNase L-deficient THP1 cells after virus infection or 2-5A transfection PMID 9351818: Zhou et al. (1997) RNASEL Mouse model To determine the physiological roles of the 2-5A system, mice were generated with a targeted disruption of the RNase L gene. The antiviral effect of interferon was impaired in RNaseL–/– mice providing the first evidence that the 2-5A system functions as an antiviral pathway in animals. Authors showed that EMCV replicates more efficiently in cells lacking RNase L than in wild type cells, even after interferon treatment, although the effect is relatively small. Next, authors determined that survival of RNaseL-/- mice after EMCV infection was significantly reduced both in presence and absence of IF (Fig 3). Enlarged thymus and reduced level of apoptosis in thymus and spleen were also found (Fig 4-5). PMID 31156620 Panda et al (2019) Interferon regulatory factor-1 (IRF1) regulates expression of RNaseL and knockdown of RNaseL in BEAS-2B cells resulted in significantly increased VSV infection rates. (Fig.6) PMID 22356654 Arredondo et al. 2012 Authors studied allelic variants in RNASEL gene at codon 462 (R462Q, rs486907) for susceptibility to viral infection, prostate cancer and chronic fatigue syndrome. The allelic distribution at codon 462 was 139 (33.9%), 204 (49.8%), and 67 (16.3%) for RR, RQ, and QQ, respectively, in 410 individuals in Spain. There were no significant differences comparing 105 blood donors and 71 patients with HIV-1 infection, 27 with chronic hepatitis C, 67 with prostate cancer, and 107 with chronic fatigue syndrome. In contrast, two-thirds of 18 patients with HTLV-1 infection and 15 with chronic hepatitis B harbored RR (Table 1). Thus, polymorphisms at the RNASEL gene do not seem to influence the susceptibility to common viral infections or conditions potentially of viral etiology. They conclude that the role in influencing the susceptibility to HTLV-1 or HBV chronic infection warrants further examination in larger patient populations. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | PTX3 |
Rebecca Foulger commented on gene: PTX3: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): Pentraxins are a superfamily of conserved humoral mediators of innate immunity. PTX3, the prototypic long pentraxin, is a soluble pattern recognition molecule produced by several cell types in response to primary pro-inflammatory signals and microbial recognition. It is involved in the initiation of protective responses against select pathogens, acting as an important mediator of innate immunity against pathogens of fungal, bacterial and viral origin, and as a regulator of inflammation, by modulating complement activation and cell extravasation, and facilitating pathogen recognition by myeloid cells. It is an established biomarker in sepsis, with PTX3 plasma levels associated with severity of the condition, patient survival, and response to therapy. PTX3 has been characterized as a biomarker of severity and outcomes in different infections caused by bacteria, fungi or viruses. Patients with pulmonary aspergillosis, tuberculosis, dengue virus infection, meningococcal disease leptospirosis and shigellosis have increased PTX3 plasma levels that correlate with disease severity and could act as predictor of unfavourable outcomes (PMID 31031772: Porte et al. 2019). Several studies using Ptx3-deficient mice showed an increased susceptibility to fungal, bacterial and viral pathogens (Porte et al. 2019). In contrast, a study in PTX3-deficient (PTX3(-/-)) mice acutely infected with RRV exhibited delayed disease progression and rapid recovery through diminished inflammatory responses and viral replication (Foo et al. 2015). PTX3 administration has shown to be protective also against infections with Influenza virus, murine cytomegalovirus, Neisseria meningitidis, and P. aeruginosa in neonates and during chronic infections by reducing viral load and inflammatory pathology. (PMID 31031772: Porte et al. 2019, PMD 18292565: Reading et al. 2008). PMID: 25695775: Foo et al. (2015) - Found that pentraxin 3 (PTX3) was highly expressed in chikungunya virus (CHIKV) and Ross River virus (RRV) patients during acute disease. Overt expression of PTX3 in CHIKV patients was associated with increased viral load and disease severity. PTX3-deficient (PTX3(-/-)) mice acutely infected with RRV exhibited delayed disease progression and rapid recovery through diminished inflammatory responses and viral replication. Furthermore, binding of the N-terminal domain of PTX3 to RRV facilitated viral entry and replication. PMID: 18292565 - Reading et al. (2008) - Identified the long pentraxin PTX3 as a potent innate inhibitor of influenza viruses both in vitro and in vivo. Human and murine PTX3 bound to influenza virus and mediated a range of antiviral activities, including inhibition of hemagglutination, neutralization of virus infectivity and inhibition of viral neuraminidase. Antiviral activity was associated with binding of the viral hemagglutinin glycoprotein to sialylated ligands present on PTX3. Using a mouse model found PTX3 to be rapidly induced following influenza infection and that PTX3-/- mice were more susceptible than wild-type mice to infection by PTX3-sensitive virus strains. Therapeutic treatment of mice with human PTX3 promoted survival and reduced viral load in the lungs following infection with PTX3-sensitive, but not PTX3-resistant, influenza viruses. PMID 19968561: Bottazzi et al. (2010) (Review) - PTX3 binds to human and murine cytomegalovirus and influenza virus type A (IVA). The interaction between PTX3 and IVA occurs through binding of sialylated ligands on PTX3 to the viral hemagglutinin and results in neutralization of virus infectivity in vitro. Consistently, desialylated PTX3 does not bind IVA and does not neutralize virus infectivity. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | NPC1 |
Rebecca Foulger commented on gene: NPC1: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): NPC1 encodes a polytopic protein that resides in the limiting membrane of late endosomes and lysosomes (LE/LY) and mediates distribution of lipoprotein-derived cholesterol in cells (Cote et al. (2011). NPC1 expression is critical for filovirus infection (EboV and MarV) and the mechanism of infection is not dependent on NPC1 cholesterol transport activity (Carette et al. 2011). Structural studies demonstrate that the C-domain of NPC1 binds to the primed EBOV glycoprotein (Wang et al. 2016; Gong et al. 2016). PMID 21866103: Carette et al. (2011) Genome-wide haploid genetic screen was performed in primary fibroblasts derived from human Niemann-Pick type C1 disease patients to identify host factors required for Filovirus infection. These cells are resistant to infection by EboV and MarV but remain fully susceptible to other unrelated viruses (Figure 2A, B). Resistance of NPC1-deficient cells was not caused by cholesterol transport defects (Fig S8). Infection in these cells was restored by expression of wild type NPC1 (Figure 2C). Similar results were observed in NPC1-null Chinese hamster ovary (CHO) cells, with loss of NPC1 conferring complete resistance to viral infection (Figure S6D) that was reversed by expression of human NPC1 (Figure S6E). Electron micrographs of NPC1 mutant cells infected with rVSV-GP-EboV indicate that NPC1 is required in downstream process in filovirus entry leading to viral membrane fusion and escape from the lysosomal compartment. Knockdown of NPC1 in HUVEC diminished infection by filoviruses (Figure 4D and S18) suggesting that NPC1 is critical for authentic filovirus infection. Furthermore, NPC1+/+ mice rapidly succumb to infection with either filovirus while NPC1−/+ mice were largely protected (Figure 4E). PMID 2186610: Cote et al. (2011) HeLa cells treated with benzylpiperazine adamantane diamide-derived compounds (3.0 and 3.47) developed cytoplasmic vacuoles indicating that that they target one or more proteins involved in regulation of cholesterol uptake in cells. CHO cells lacking NPC1 were completely resistant to infection by this virus and infection of these cells was fully restored when NPC1 was expressed. NPC1 expression but not NPC1-dependent cholesterol transport activity is essential for EboV infection (Fig 2c). 3.0-derived compounds inhibit EboV infection by interfering with binding of cleaved glycoprotein to NPC1 (Fig 4). PMID 26771495: Wang et al. (2016) The crystal structure of the primed glycoprotein (GPcl) of Ebola virus and domain C of NPC1 (NPC1-C) demonstrates that the NPC1-C binds to the primed EBOV GP (Fig 1, 3). Further, it suggests that a membrane-fusion-priming conformational change occurs in GPcl or the binding of GPcl, and this is a unique feature for all the filoviruses. NPC1-interacting compound 3.47 competitively blocks the primed GP binding to the membrane probably binds to the two protruding loops of NPC1-C. Compound U18666A binds to a different site on NPC1 causing endosomal calcium depletion. Furthermore, peptide inhibitors or small molecules, which can easily penetrate the cell membrane and reach the primed GP in the late endosomes could also act as potential therapeutic agents. PMID 27238017: Gong et al. (2016) Full-length human NPC1 and a low-resolution reconstruction of NPC1 in complex with the cleaved glycoprotein (GPcl) of EBOV was determined by single-particle electron cryomicroscopy. NPC1 contains 13 transmembrane segments (TMs) and three lumenal domains, A (NTD), C, and I. TMs 2–13 exhibit a typical resistance-nodulation-cell division fold, among which TMs 3–7 constitute the sterol-sensing domain conserved in several proteins involved in cholesterol metabolism and signaling. EBOV-GPcl binds to NPC1 through the domain C. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | NECTIN1 |
Rebecca Foulger commented on gene: NECTIN1: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): Amino acid substitutions in nectin-1 showed impaired entry of Herpes simplex virus (HSV) into CHO-K1 cells (PMID:1175687;12072525). Nectin-1 knockout mice inoculated with HSV in the hippocampus demonstrated that nectin-1 is necessary for neurologic disease caused by HSV (PMID:19805039). PMID 11756979 - Struyf et al. (2002) - Searched for polymorphisms in HVEM, nectin-1, and nectin-2 via sequencing in individuals shown to immune seronegative for herpes simplex virus (HSV). These individuals showed T cell responses to HSV antigens and did not have anti-HSV antibodies detected in their serum. There were three individuals that were immune seronegative, three with no signs of cellular or humoral immunity, and three with frequent reactivations of HSV who had antibody and T cell responses to HSV. One individual in the study (true seronegative as demonstrated by negative testing for HSV-1 and HSV-2 and no HSV-specific T cell immunity) was identified to have a variant in nectin-1 (c.752G>A, p.Arg199Gln) in addition to one missense variant in HVEM (table 2). This variant was screened for 644 healthy White individuals and 17 were shown to be heterozygous for the p.Arg199Gln variant and one individual had a different missense variant at the same residue. The p.Arg199Gln variant occurs in the first constant-like domain for the protein. A different domain, the N-terminal variable-like domain, has previously been shown as important for virus entry into the cell. PMID 12072525 - Martinez and Spear (2002) - Investigated whether residues 75-77 and 85 of nectin-1 (homologous to regions A and B of nectin-2) are necessary for HSV-1 entry into CHO-K1 cells (which are resistant to the entry of alphaherpesviruses unless they are created to express a gD receptor). When there were mutants involving both residues 77 and 85, there was severely diminished ability of HSV-1 or HSV-2 to enter the cell and was unable to find to soluble forms of HSV-1 and HSV-2 (table 1; fig. 3). Note that these mutants allowed entry of PRV and BHV-1. PMID 19805039 - Kopp et al. (2009) - Nectin-1 knockout (KO) mice were inoculated intracranially and into the hippocampus with herpes simplex virus (HSV) and infection of neurons compared to HVEM KO mice, HVEM/nectin-1 KO mice, and controls. Nectin-1 KO mice were resistant to disease, as were the double KO mice at doses of the virus up to 100x needed to cause disease as compared to the wildtype and HVEM KO mice (Fig. 1). Nectin-1 is necessary for neurologic disease caused by HSV. Viral antigen was not detected in brain sections from double KO mice, but could be detected for nectin-1 KO mice (limited regions), HVEM-KO mice and wildtype (more widespread) (Fig. 2A). HSV was shown to be located to the ventricular surfaces in nectin-1 KO mice and confirmed as non-parenchymal cells (Fig. 2B). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | MIR155 |
Rebecca Foulger commented on gene: MIR155: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): MIR155 (also referred to as BIC) is an endogenous noncoding RNA involved in regulation of the immune response, in particular T-cell differentiation, and in regulation of innate immunity (PMID: 32233818; 217121651;1746328969;20852130). This miRNA has been associated with various virus infections (PMID: 32233818;28139244;23686237;26072128). miR-155-5p expression has been shown to be induced in mice infected with influenza A virus (PMID: 32308197 - in this study, lung injury by ARDS was attenuated by deletion of miR-155, making this miRNA a potential therapeutic target in the context of COVID-19). Through single cell and bulk RNA profiling of SARS-CoV-2 and SARS-CoV infections in three human cell lines (H1299, Caco-2 and Calu-3 cells), Emanuel et al. (2020) (bioRxiv preprint doi: https://doi.org/10.1101/2020.05.05.079194) demonstrated strong expression of the immunity and inflammation-associated microRNA miRNA-155 upon viral infection with both viruses. Both viruses triggered a 16-fold upregulation of one form of miR-155 and a 3-fold upregulation of another. A role for MIR155 in viral susceptibility for a range of viruses and the immune response has also been demonstrated in a series of mouse models: PMID 23601686: In Mir155 -/- mice, Dudda et al. (2013) observed severely reduced accumulation of Cd8-positive T cells during acute and chronic viral infections with impaired control of viral replication. Lack of Mir155 led to an accumulation of Socs1 resulting in defective cytokine signaling through Stat5. Dudda et al. also concluded that MIR155 and its target, SOCS1, are key regulators of CD8-positive T cells. PMID 23275599: Lind et al. (2013) found that mice lacking Mir155 had impaired Cd8 positive T-cell responses to infections with lymphocytic choriomeningitis virus and the intracellular bacteria Listeria monocytogenes and concluded that MIR155 is required for acute CD8-positive T-cell responses and proposed that targeting MIR155 may be useful in modulating immune responses. PMID 24516198: Bhela et al. (2014) – 75 to 80% of MIR155 null mice infected ocularly with herpes simplex virus (HSV)-1 developed herpes simplex encephalitis with elevated viral titers in brain, but not in cornea. Immunohistochemical and flow cytometric analyses in Mir155-null mice showed diminished Cd8-positive T-cell numbers, functionality, and homing capacity. Adoptive transfer of HSV-1-immune Cd8-positive T cells to Mir155-null mice 24 hours after infection provided protection from HSE. The authors concluded that MIR155 deficiency results in enhanced susceptibility of the nervous system to HSV-1 infection. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | KLF2 |
Rebecca Foulger commented on gene: KLF2: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): KLF2 is a member of the Kruppel-like factor (KLF) family of zinc finger transcription factors that function in cell differentiation, quiescence, and homeostasis. It also plays a regulatory role in inflammation-related pathways (Jha and Das 2017). Richardson et al. (2012) showed that KLF2 acts as a host factor that modulates CCR5 expression in CD4 T cells and influences susceptibility to infection with CCR5-dependent HIV-1 strains. Huang et al. (2017) showed through both network analyses and experimental results that KLF2 plays a central role in regulating many genes associated with acute respiratory distress syndrome (ARDS) identified by GWAS and that overexpression of KLF2 in vivo in mice could mitigate lung injury and expression of inflammatory genes, including that induced by influenza A virus. PMID 17141159: Lee et al. (2006) - KLF2 deficient mice die in prenatal stage due to vascular defects, highlighting its crucial role in embryonic development. Lethal high-output heart failure, as found in the KO mice, was also observed in zebrafish embryos after morpholino inhibition of the Klf2 ortholog klf2a. CD4+ T cells from KLF2-deficient mice expressed multiple inflammatory chemokine receptors, suggesting that loss of KLF2 leads to redirection of naïve T cells to nonlymphoid sites (Sebzda et al., 2008). PMID 19592277: Weinreich et al. (2009) - Demonstrated upregulation of the chemokine receptor CXCR3 on KLF2-deficient T cells (Fig. 1). KLF2-deficient T cells also overproduced IL-4 (Fig. 5). PMID 22988032: Richardson et al. (2012) - Tested whether the abundance of KLF2 after T cell activation regulates CCR5 expression and, thus, susceptibility of a T cell to CCR5-dependent HIV-1 strains (R5). Introduced small interfering RNA targeting KLF2 expression and demonstrated that reduced KLF2 expression also resulted in less CCR5 (Fig. 3). Introduction of KLF2 under control of a heterologous promoter could restore CCR5 expression and R5 susceptibility to CD3/28 costimulated T cells and some transformed cell lines (Fig. 5, 6). KLF2 is a host factor that modulates CCR5 expression in CD4 T cells and influences susceptibility to R5 infection. PMID 29125549: (review) Jha and Das (2017) - KLF2 also plays a critical regulatory role in various inflammatory diseases and their pathogenesis. PMID 27855271: Huang et al. (2017) - Animal and in vitro models of acute lung injury were used to characterize KLF2 expression and its downstream effects responding to influenza A virus (A/WSN/33 [H1N1]), tumor necrosis factor-α, LPS, mechanical stretch/ventilation, or microvascular flow to examine the role of the gene in endothelial barrier disruption and cytokine storm in experimental lung injury. Pulmonary Klf2 was down-regulated by inflammation induced by influenza A/WSN/H1N1 virus (H1N1) infection, LPS administration, or LPS administration followed by high tidal volume ventilation in vivo (Fig. 1). It was also down-regulated by pathologic stretch and inflammatory stimuli (Fig. 2). Knockdown of endogenous KLF2 reduces Rac1 activation in human pulmonary microvascular cells, whereas adenovirus-mediated transduction with KLF2 promoted Rac1 activation (Fig. 3). Computational predictive pathway analysis suggested that KLF2 acts to regulate ARDS-associated GWAS genes, including ACE, NAD(P)H, NQO1, SERPINE1/PAI-1, TNF, and NF-kappaB. Expression studies in mice confirmed this regulatory role (Fig. 8). Overexpression of KLF2 in vivo in mice could also mitigate lung injury and expression of inflammatory genes (Fig. 7). |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | DICER1 |
Rebecca Foulger changed review comment from: Evidence Summary from Illumina curation team: The DICER1 gene, located on chromosome 14, position q32.13, was discovered in 2001 by Bernstein and is a member of the RNase III family, (also known as dicer 1, ribonuclease III; dicer1, Dcr-1 homolog (Drosophila); multinodular goitre 1). DICER1 is involved in the generation of double-stranded microRNAs (miRNAs), short non-coding RNAs, the cleavage of dsRNA into siRNAs, along with the biogenesis of numerous other small RNAs. There is increasing evidence DICER1 is also involved in regulating many other essential cellular processes such as those related to chromatin remodeling, inflammation, apoptosis and cell survival (Kurzynska-Kokorniak et al. 2015; Song and Rossi, 2017). DICER1 encodes a ∼220-KDa protein (RNase III endoribonuclease) which is a crucial component of the RNA Induced Silencing Complex (RISC) loading complex (RLC), comprised of dicer, Argonaute-2 (AGO-2), and trans-activation-responsive RNA binding protein 2 (TARBP2). The encoded protein is required by the RNA interference (RNAi) and small temporal RNA (stRNA) pathways to produce the active small RNA component which has a role in modulating gene expression at the post-transcriptional level. Research has shown that expression levels of cellular transcript and protein dicer are strictly controlled, with aberrant regulation contributing to carcinogenesis, neurodegenerative, rheumatic and immune system disorders. Studies have concluded that the encoded dicer ribonuclease-dependent processing of dsRNA viral replication intermediates into successive siRNAs is a conserved mammalian immune response to infection by positive-strand RNA viruses (Svobodova et al. 2016 summary & fig1; Li et al. 2013; Ding et al. 2018). Moreover, miRNAs play an important role in host-virus interactions in mammals (See Maillard et al. 2019 REVIEW; Foulkes et al. 2014 REVIEW). IMMUNE SYSTEM The cre-lox method for dicer1 gene knockout has been employed for studies into the role of dicer1 in immune cell development and function. Studies of dicer1 fl/fl mice have indicated short survival times along with severely impaired GMP differentiation into monocytes, neutrophils, myeloid DCs & mature macrophages. (Devasthanam et al. 2014). Results conclude that dicer1 is important in immune response and also vital for cell survival and apoptosis pathways. Muljo et al. (2005) investigated a conditional allele of dicer-1 (dcr-1) within a mouse model and showed that specific dcr-1 deletion in the T-cell lineage, resulted in impaired development of T-cells & aberrant cell differentiation of T-helper cells & cytokine production. Dcr-1 deletion in the thymus resulted in severe block in development of CD8+ T cells and resulted in defective microRNA processing in CD4+ T-cells. The results demonstrate Dicer regulates diverse aspects of T-cell biology along with cytokine production during T-cell differentiation where dicer-deficient T-cells preferentially express interferon-ƴ. VIRUSES Research by Galiana-Arnoux et al. (2006), of DICER in drosophila (drosophila have two dicer genes) have identified that DICER genes (Dcr1, miRNA pathway and Dcr2, RNAi pathway) control production of siRNA and a loss-of-function mutation in Dcr2 resulted in increased susceptibility to three different families of RNA viruses. Qi et al. (2012) research into RNAi gene silencing mechanism show that the B2 protein in Wuhan nodavirus (WhNV) suppresses Dcr2 in drosophila by direct interaction with the PAZ and RNAse III domains therefore blocking processing of dsRNA and siRNA. Evidence of a dicer antiviral system was also reported by Machitani et al. (2016) for mammalian human adenoviruses where DICER1 gene knockdown increased the copy number of adenovirus-encoding small RNAs (VA-RNAs) leading to the promotion of adenovirus replication; conversely, dicer overexpression significantly inhibited viral replication. Modai et al. (2019) conclude that HIV-1 infection inhibits DICER1 by altering miRNA expression. They conclude that upon HIV-1 infection, human miR-186, 210 and 222 directly regulate DICER1 gene expression causing down-regulation of the gene contributing to impaired cell-mediated immunity (fig6). Other methods of inhibition are from viral proteins, termed viral suppressors of RNA silencing, which interact and inhibit dicer ribonuclease activity in HIV-1 and hepatitis C infections. These viral proteins may mediate proteasomal degradation of endoribonuclease dicer through CRL4DCAF1 ubiquitin ligase complex (Klockow et al. 2013), interact directly via the core protein (Chen et al. 2008) or HIV-1 transactivation of transcription (Bennasser and Jeang, 2006). Through these methods they can block dicer interactions with TRBP2 or ADAR1, boost macrophage infection, and subsequently reduce the function of short hairpin RNAs (shRNAs) which thus inhibit RNA silencing. Ultimately these viruses, though various methods, supress the ability of dicer to process dsRNAs into siRNAs boosting viral infection and pathogenesis. Downregulation of DICER1 gene expression has additionally been found in cord blood of infants with severe respiratory syncytial virus (RSV), prior to RSV exposure, indicating this reduced expression may predispose newborns to RSV disease. Inchley et al. (2011) theorize that this occurs via disruption of leukocyte gene regulation of miRNA and direct anti-viral RNAi mechanisms. (Inchley et al. 2011 see section on “Dicer Gene Expression”). Otsuka et al. (2007) have shown using gene-trap methods to obtain viable dicer1 fl/fl mice where dicer1 deficiency caused impairment of miR24 and miR93 production resulting in susceptibility to vesticular stomatitis virus (VSV) and herpes simplex-1 virus, but not other viruses tested. SARS CoV & SARS CoV-2 Recently, Pasquier and Robichon, 2020 (preprint) have investigated the Dicer host immunity system regarding SARs-CoV-2 within a computational approach, concluding SARS-CoV2 may manipulate this system of immunity against its host, requiring further research. Mu et al., 2020 suggest SARs-CoV2 suppresses RNAi thus preventing recognition by the encoded ribonuclease dicer protein Viral suppressors of RNA silencing (VSRs) suppress RNAi at pre or post-dicer level to overcome host defense and establish infection. Cui et al. (2015) from Wuhan University laboratory of virology, identified a novel VSR from coronaviruses (CoVs) including Severe acute respiratory syndrome coronavirus (SARS-CoV) and showed that the coronavirus nucelocaspid protein (N-protein), conserved and expressed in all coronaviruses, suppressed RNAi triggered by either short hairpin RNAs or small interfering RNAs in mammalian cells. They went on to show using mouse hepatitis virus A-59 (MHV-A59) which is closely linked to SARS-CoV in the family coronaviridae, that the viral replication was increased when the N proteins (novel VSR) were expressed but that knockdown of DICER1 gene or Ago2 transcripts facilitated the viral replication specifically in mammalian cells. They demonstrate that the N-protein of CoVs could efficiently inhibit dicer-mediated dsRNA cleavage and post-Dicer activities by sequestering dsRNAs and siRNAs. Kannan et al. (2020) performed clustal W analysis of N-Protein for SARS-CoV and COVID-19 demonstrating 90% sequence identity from an NCBI amino acid blast of both nucleocapsid (N) protein sequences (figure2). They suggest that the N-protein of COVID-19 may also function as a VSR for RNAi to overcome host defense. Ding et al. (2017) show that both MHV and SARS-CoV N proteins can also disrupt protein activator of protein kinase R (PACT), a cellular dsRNA-binding protein which binds to RIG-I and MDA5 to activate interferon (IFN) production to prevent antiviral host response. Literature Review PMID: 17181864: Bennasser and Jeang, 2006 • HIV-1 Tat Interaction With Dicer: Requirement for RNA • Tat-Dicer interaction depends on RNA, requires the helicase domain of Dicer, and is independent of Tat's transactivation domain. PMID: 18325616: Chen et al., 2008 • HCV Core Protein Interacts With Dicer to Antagonize RNA Silencing PMID: 26085159: Cui et al., 2015 • The Nucleocapsid Protein of Coronaviruses Acts as a Viral Suppressor of RNA Silencing in Mammalian Cells PMID: 24303839: Devasthanam et al, 2014 • This study investigates the role of the dicer protein in immune cell development and function using dicer1 cre-lox knockout models to conditionally ablate dicer1 in different immune cell subsets. PMID: 28591694: Ding et al., 2017 • The nucleocapsid proteins of mouse hepatitis virus and severe acute respiratory syndrome coronavirus share the same IFN-β antagonizing mechanism: attenuation of PACT-mediated RIG-I/MDA5 activation PMID: 30015086: Ding et al., 2018 • Antiviral RNA Interference in Mammals: Indicates infection of plants and insects with RNA and DNA viruses triggers Dicer-dependent production of virus-derived small interfering RNAs (vsiRNAs), which subsequently guide specific virus clearance by RNA interference (RNAi). PMID: 25176334: Foulkes et al., 2012-REVIEW • Review of DICER1: DICER1 Mutations, microRNAs and Mechanisms PMID: 16554838: Galiana-Arnoux et al., 2006 • Essential function in vivo for Dicer-2 in host defense against RNA viruses in drosophila. • https://pubmed.ncbi.nlm.nih.gov/16554838/ or https://www.nature.com/articles/ni1335 PMID: 21385408: Inchley et al., 2011 • Investigates ribonuclease Dicer and analyzed the gene expression of Dicer in newborns of which 37 infants had sufficient cord blood RNA with confirmed RSV disease <1yr. Demonstrates significant reduced Dicer expression in cord blood prior to severe disease in infants <1yr later. Conclude downregulation may predispose infants to RSV disease. PMID: 32141569: Kannan et al., 2020 • COVID-19 (Novel Coronavirus 2019) - Recent Trends • Perform W cluster analysis of COVID-19 and SARS-CoV nucleocapsid (N) protein sequences of the viruses showing 90% amino acid sequence similarity. Suggest the N-protein may be a VSR in RNAi by targeting DICER. PMID: 23849790: Klockow et al., 2013 • The HIV-1 Protein Vpr Targets the Endoribonuclease Dicer for Proteasomal Degradation to Boost Macrophage Infection PMID: 25883138: Kurzynska-Kokorniak et al., 2015 • Investigating the complexity of the mechanisms regulating Dicer gene expression and enzyme activities PMID: 24115437: Li et al, 2013 • Investigates RNA interference pathways in antiviral immunity in mammals overviewing dicer processing of dsRNA viral replication intermediates into siRNAs. PMID: 27273616: Machitani et al., 2016 • Dicer functions as an antiviral system against human adenoviruses via cleavage of adenovirus-encoded noncoding RNA PMID: 30872283: Maillard et al., 2019- REVIEW • Reviewing DICER1 within the anti-viral RNAi pathway in mammals PMID: 30682089: Modai et al, 2019 • HIV-1 infection increases miRNAs which inhibit Dicer PMID: 32291557: Mu et al, 2020 • SARS-CoV-2-encoded nucleocapsid protein acts as a viral suppressor of RNA interference in cells PMID: 16009718: Muljo et al., 2005 • Indicates absence of dicer results in abberant T-cell differentiation. PMID: 17613256: Otsuka, et al 2007 • Hypersusceptibility to Vesicular Stomatitis Virus Infection in Dicer1-Deficient Mice Is Due to Impaired miR24 and miR93 Expression No PMID: Preprint : Pasquier and Rubichon, 2020 • SARS-CoV-2 might manipulate against its host the immunity RNAi/Dicer/Ago system PMID: 22438534: Qi et al., 2012 • Targeting of Dicer-2 and RNA by a Viral RNA Silencing Suppressor in Drosophila Cells PMID: 28473628: Song and Rossi, 2017 • Molecular Mechanisms of Dicer: Endonuclease and Enzymatic Activity; to: Evidence Summary from Illumina curation team (Alison Coffey and Julie Taylor): The DICER1 gene, located on chromosome 14, position q32.13, was discovered in 2001 by Bernstein and is a member of the RNase III family, (also known as dicer 1, ribonuclease III; dicer1, Dcr-1 homolog (Drosophila); multinodular goitre 1). DICER1 is involved in the generation of double-stranded microRNAs (miRNAs), short non-coding RNAs, the cleavage of dsRNA into siRNAs, along with the biogenesis of numerous other small RNAs. There is increasing evidence DICER1 is also involved in regulating many other essential cellular processes such as those related to chromatin remodeling, inflammation, apoptosis and cell survival (Kurzynska-Kokorniak et al. 2015; Song and Rossi, 2017). DICER1 encodes a ∼220-KDa protein (RNase III endoribonuclease) which is a crucial component of the RNA Induced Silencing Complex (RISC) loading complex (RLC), comprised of dicer, Argonaute-2 (AGO-2), and trans-activation-responsive RNA binding protein 2 (TARBP2). The encoded protein is required by the RNA interference (RNAi) and small temporal RNA (stRNA) pathways to produce the active small RNA component which has a role in modulating gene expression at the post-transcriptional level. Research has shown that expression levels of cellular transcript and protein dicer are strictly controlled, with aberrant regulation contributing to carcinogenesis, neurodegenerative, rheumatic and immune system disorders. Studies have concluded that the encoded dicer ribonuclease-dependent processing of dsRNA viral replication intermediates into successive siRNAs is a conserved mammalian immune response to infection by positive-strand RNA viruses (Svobodova et al. 2016 summary & fig1; Li et al. 2013; Ding et al. 2018). Moreover, miRNAs play an important role in host-virus interactions in mammals (See Maillard et al. 2019 REVIEW; Foulkes et al. 2014 REVIEW). IMMUNE SYSTEM The cre-lox method for dicer1 gene knockout has been employed for studies into the role of dicer1 in immune cell development and function. Studies of dicer1 fl/fl mice have indicated short survival times along with severely impaired GMP differentiation into monocytes, neutrophils, myeloid DCs & mature macrophages. (Devasthanam et al. 2014). Results conclude that dicer1 is important in immune response and also vital for cell survival and apoptosis pathways. Muljo et al. (2005) investigated a conditional allele of dicer-1 (dcr-1) within a mouse model and showed that specific dcr-1 deletion in the T-cell lineage, resulted in impaired development of T-cells & aberrant cell differentiation of T-helper cells & cytokine production. Dcr-1 deletion in the thymus resulted in severe block in development of CD8+ T cells and resulted in defective microRNA processing in CD4+ T-cells. The results demonstrate Dicer regulates diverse aspects of T-cell biology along with cytokine production during T-cell differentiation where dicer-deficient T-cells preferentially express interferon-ƴ. VIRUSES Research by Galiana-Arnoux et al. (2006), of DICER in drosophila (drosophila have two dicer genes) have identified that DICER genes (Dcr1, miRNA pathway and Dcr2, RNAi pathway) control production of siRNA and a loss-of-function mutation in Dcr2 resulted in increased susceptibility to three different families of RNA viruses. Qi et al. (2012) research into RNAi gene silencing mechanism show that the B2 protein in Wuhan nodavirus (WhNV) suppresses Dcr2 in drosophila by direct interaction with the PAZ and RNAse III domains therefore blocking processing of dsRNA and siRNA. Evidence of a dicer antiviral system was also reported by Machitani et al. (2016) for mammalian human adenoviruses where DICER1 gene knockdown increased the copy number of adenovirus-encoding small RNAs (VA-RNAs) leading to the promotion of adenovirus replication; conversely, dicer overexpression significantly inhibited viral replication. Modai et al. (2019) conclude that HIV-1 infection inhibits DICER1 by altering miRNA expression. They conclude that upon HIV-1 infection, human miR-186, 210 and 222 directly regulate DICER1 gene expression causing down-regulation of the gene contributing to impaired cell-mediated immunity (fig6). Other methods of inhibition are from viral proteins, termed viral suppressors of RNA silencing, which interact and inhibit dicer ribonuclease activity in HIV-1 and hepatitis C infections. These viral proteins may mediate proteasomal degradation of endoribonuclease dicer through CRL4DCAF1 ubiquitin ligase complex (Klockow et al. 2013), interact directly via the core protein (Chen et al. 2008) or HIV-1 transactivation of transcription (Bennasser and Jeang, 2006). Through these methods they can block dicer interactions with TRBP2 or ADAR1, boost macrophage infection, and subsequently reduce the function of short hairpin RNAs (shRNAs) which thus inhibit RNA silencing. Ultimately these viruses, though various methods, supress the ability of dicer to process dsRNAs into siRNAs boosting viral infection and pathogenesis. Downregulation of DICER1 gene expression has additionally been found in cord blood of infants with severe respiratory syncytial virus (RSV), prior to RSV exposure, indicating this reduced expression may predispose newborns to RSV disease. Inchley et al. (2011) theorize that this occurs via disruption of leukocyte gene regulation of miRNA and direct anti-viral RNAi mechanisms. (Inchley et al. 2011 see section on “Dicer Gene Expression”). Otsuka et al. (2007) have shown using gene-trap methods to obtain viable dicer1 fl/fl mice where dicer1 deficiency caused impairment of miR24 and miR93 production resulting in susceptibility to vesticular stomatitis virus (VSV) and herpes simplex-1 virus, but not other viruses tested. SARS CoV & SARS CoV-2 Recently, Pasquier and Robichon, 2020 (preprint) have investigated the Dicer host immunity system regarding SARs-CoV-2 within a computational approach, concluding SARS-CoV2 may manipulate this system of immunity against its host, requiring further research. Mu et al., 2020 suggest SARs-CoV2 suppresses RNAi thus preventing recognition by the encoded ribonuclease dicer protein Viral suppressors of RNA silencing (VSRs) suppress RNAi at pre or post-dicer level to overcome host defense and establish infection. Cui et al. (2015) from Wuhan University laboratory of virology, identified a novel VSR from coronaviruses (CoVs) including Severe acute respiratory syndrome coronavirus (SARS-CoV) and showed that the coronavirus nucelocaspid protein (N-protein), conserved and expressed in all coronaviruses, suppressed RNAi triggered by either short hairpin RNAs or small interfering RNAs in mammalian cells. They went on to show using mouse hepatitis virus A-59 (MHV-A59) which is closely linked to SARS-CoV in the family coronaviridae, that the viral replication was increased when the N proteins (novel VSR) were expressed but that knockdown of DICER1 gene or Ago2 transcripts facilitated the viral replication specifically in mammalian cells. They demonstrate that the N-protein of CoVs could efficiently inhibit dicer-mediated dsRNA cleavage and post-Dicer activities by sequestering dsRNAs and siRNAs. Kannan et al. (2020) performed clustal W analysis of N-Protein for SARS-CoV and COVID-19 demonstrating 90% sequence identity from an NCBI amino acid blast of both nucleocapsid (N) protein sequences (figure2). They suggest that the N-protein of COVID-19 may also function as a VSR for RNAi to overcome host defense. Ding et al. (2017) show that both MHV and SARS-CoV N proteins can also disrupt protein activator of protein kinase R (PACT), a cellular dsRNA-binding protein which binds to RIG-I and MDA5 to activate interferon (IFN) production to prevent antiviral host response. Literature Review PMID: 17181864: Bennasser and Jeang, 2006 • HIV-1 Tat Interaction With Dicer: Requirement for RNA • Tat-Dicer interaction depends on RNA, requires the helicase domain of Dicer, and is independent of Tat's transactivation domain. PMID: 18325616: Chen et al., 2008 • HCV Core Protein Interacts With Dicer to Antagonize RNA Silencing PMID: 26085159: Cui et al., 2015 • The Nucleocapsid Protein of Coronaviruses Acts as a Viral Suppressor of RNA Silencing in Mammalian Cells PMID: 24303839: Devasthanam et al, 2014 • This study investigates the role of the dicer protein in immune cell development and function using dicer1 cre-lox knockout models to conditionally ablate dicer1 in different immune cell subsets. PMID: 28591694: Ding et al., 2017 • The nucleocapsid proteins of mouse hepatitis virus and severe acute respiratory syndrome coronavirus share the same IFN-β antagonizing mechanism: attenuation of PACT-mediated RIG-I/MDA5 activation PMID: 30015086: Ding et al., 2018 • Antiviral RNA Interference in Mammals: Indicates infection of plants and insects with RNA and DNA viruses triggers Dicer-dependent production of virus-derived small interfering RNAs (vsiRNAs), which subsequently guide specific virus clearance by RNA interference (RNAi). PMID: 25176334: Foulkes et al., 2012-REVIEW • Review of DICER1: DICER1 Mutations, microRNAs and Mechanisms PMID: 16554838: Galiana-Arnoux et al., 2006 • Essential function in vivo for Dicer-2 in host defense against RNA viruses in drosophila. • https://pubmed.ncbi.nlm.nih.gov/16554838/ or https://www.nature.com/articles/ni1335 PMID: 21385408: Inchley et al., 2011 • Investigates ribonuclease Dicer and analyzed the gene expression of Dicer in newborns of which 37 infants had sufficient cord blood RNA with confirmed RSV disease <1yr. Demonstrates significant reduced Dicer expression in cord blood prior to severe disease in infants <1yr later. Conclude downregulation may predispose infants to RSV disease. PMID: 32141569: Kannan et al., 2020 • COVID-19 (Novel Coronavirus 2019) - Recent Trends • Perform W cluster analysis of COVID-19 and SARS-CoV nucleocapsid (N) protein sequences of the viruses showing 90% amino acid sequence similarity. Suggest the N-protein may be a VSR in RNAi by targeting DICER. PMID: 23849790: Klockow et al., 2013 • The HIV-1 Protein Vpr Targets the Endoribonuclease Dicer for Proteasomal Degradation to Boost Macrophage Infection PMID: 25883138: Kurzynska-Kokorniak et al., 2015 • Investigating the complexity of the mechanisms regulating Dicer gene expression and enzyme activities PMID: 24115437: Li et al, 2013 • Investigates RNA interference pathways in antiviral immunity in mammals overviewing dicer processing of dsRNA viral replication intermediates into siRNAs. PMID: 27273616: Machitani et al., 2016 • Dicer functions as an antiviral system against human adenoviruses via cleavage of adenovirus-encoded noncoding RNA PMID: 30872283: Maillard et al., 2019- REVIEW • Reviewing DICER1 within the anti-viral RNAi pathway in mammals PMID: 30682089: Modai et al, 2019 • HIV-1 infection increases miRNAs which inhibit Dicer PMID: 32291557: Mu et al, 2020 • SARS-CoV-2-encoded nucleocapsid protein acts as a viral suppressor of RNA interference in cells PMID: 16009718: Muljo et al., 2005 • Indicates absence of dicer results in abberant T-cell differentiation. PMID: 17613256: Otsuka, et al 2007 • Hypersusceptibility to Vesicular Stomatitis Virus Infection in Dicer1-Deficient Mice Is Due to Impaired miR24 and miR93 Expression No PMID: Preprint : Pasquier and Rubichon, 2020 • SARS-CoV-2 might manipulate against its host the immunity RNAi/Dicer/Ago system PMID: 22438534: Qi et al., 2012 • Targeting of Dicer-2 and RNA by a Viral RNA Silencing Suppressor in Drosophila Cells PMID: 28473628: Song and Rossi, 2017 • Molecular Mechanisms of Dicer: Endonuclease and Enzymatic Activity |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.348 | DICER1 |
Rebecca Foulger commented on gene: DICER1: Evidence Summary from Illumina curation team: The DICER1 gene, located on chromosome 14, position q32.13, was discovered in 2001 by Bernstein and is a member of the RNase III family, (also known as dicer 1, ribonuclease III; dicer1, Dcr-1 homolog (Drosophila); multinodular goitre 1). DICER1 is involved in the generation of double-stranded microRNAs (miRNAs), short non-coding RNAs, the cleavage of dsRNA into siRNAs, along with the biogenesis of numerous other small RNAs. There is increasing evidence DICER1 is also involved in regulating many other essential cellular processes such as those related to chromatin remodeling, inflammation, apoptosis and cell survival (Kurzynska-Kokorniak et al. 2015; Song and Rossi, 2017). DICER1 encodes a ∼220-KDa protein (RNase III endoribonuclease) which is a crucial component of the RNA Induced Silencing Complex (RISC) loading complex (RLC), comprised of dicer, Argonaute-2 (AGO-2), and trans-activation-responsive RNA binding protein 2 (TARBP2). The encoded protein is required by the RNA interference (RNAi) and small temporal RNA (stRNA) pathways to produce the active small RNA component which has a role in modulating gene expression at the post-transcriptional level. Research has shown that expression levels of cellular transcript and protein dicer are strictly controlled, with aberrant regulation contributing to carcinogenesis, neurodegenerative, rheumatic and immune system disorders. Studies have concluded that the encoded dicer ribonuclease-dependent processing of dsRNA viral replication intermediates into successive siRNAs is a conserved mammalian immune response to infection by positive-strand RNA viruses (Svobodova et al. 2016 summary & fig1; Li et al. 2013; Ding et al. 2018). Moreover, miRNAs play an important role in host-virus interactions in mammals (See Maillard et al. 2019 REVIEW; Foulkes et al. 2014 REVIEW). IMMUNE SYSTEM The cre-lox method for dicer1 gene knockout has been employed for studies into the role of dicer1 in immune cell development and function. Studies of dicer1 fl/fl mice have indicated short survival times along with severely impaired GMP differentiation into monocytes, neutrophils, myeloid DCs & mature macrophages. (Devasthanam et al. 2014). Results conclude that dicer1 is important in immune response and also vital for cell survival and apoptosis pathways. Muljo et al. (2005) investigated a conditional allele of dicer-1 (dcr-1) within a mouse model and showed that specific dcr-1 deletion in the T-cell lineage, resulted in impaired development of T-cells & aberrant cell differentiation of T-helper cells & cytokine production. Dcr-1 deletion in the thymus resulted in severe block in development of CD8+ T cells and resulted in defective microRNA processing in CD4+ T-cells. The results demonstrate Dicer regulates diverse aspects of T-cell biology along with cytokine production during T-cell differentiation where dicer-deficient T-cells preferentially express interferon-ƴ. VIRUSES Research by Galiana-Arnoux et al. (2006), of DICER in drosophila (drosophila have two dicer genes) have identified that DICER genes (Dcr1, miRNA pathway and Dcr2, RNAi pathway) control production of siRNA and a loss-of-function mutation in Dcr2 resulted in increased susceptibility to three different families of RNA viruses. Qi et al. (2012) research into RNAi gene silencing mechanism show that the B2 protein in Wuhan nodavirus (WhNV) suppresses Dcr2 in drosophila by direct interaction with the PAZ and RNAse III domains therefore blocking processing of dsRNA and siRNA. Evidence of a dicer antiviral system was also reported by Machitani et al. (2016) for mammalian human adenoviruses where DICER1 gene knockdown increased the copy number of adenovirus-encoding small RNAs (VA-RNAs) leading to the promotion of adenovirus replication; conversely, dicer overexpression significantly inhibited viral replication. Modai et al. (2019) conclude that HIV-1 infection inhibits DICER1 by altering miRNA expression. They conclude that upon HIV-1 infection, human miR-186, 210 and 222 directly regulate DICER1 gene expression causing down-regulation of the gene contributing to impaired cell-mediated immunity (fig6). Other methods of inhibition are from viral proteins, termed viral suppressors of RNA silencing, which interact and inhibit dicer ribonuclease activity in HIV-1 and hepatitis C infections. These viral proteins may mediate proteasomal degradation of endoribonuclease dicer through CRL4DCAF1 ubiquitin ligase complex (Klockow et al. 2013), interact directly via the core protein (Chen et al. 2008) or HIV-1 transactivation of transcription (Bennasser and Jeang, 2006). Through these methods they can block dicer interactions with TRBP2 or ADAR1, boost macrophage infection, and subsequently reduce the function of short hairpin RNAs (shRNAs) which thus inhibit RNA silencing. Ultimately these viruses, though various methods, supress the ability of dicer to process dsRNAs into siRNAs boosting viral infection and pathogenesis. Downregulation of DICER1 gene expression has additionally been found in cord blood of infants with severe respiratory syncytial virus (RSV), prior to RSV exposure, indicating this reduced expression may predispose newborns to RSV disease. Inchley et al. (2011) theorize that this occurs via disruption of leukocyte gene regulation of miRNA and direct anti-viral RNAi mechanisms. (Inchley et al. 2011 see section on “Dicer Gene Expression”). Otsuka et al. (2007) have shown using gene-trap methods to obtain viable dicer1 fl/fl mice where dicer1 deficiency caused impairment of miR24 and miR93 production resulting in susceptibility to vesticular stomatitis virus (VSV) and herpes simplex-1 virus, but not other viruses tested. SARS CoV & SARS CoV-2 Recently, Pasquier and Robichon, 2020 (preprint) have investigated the Dicer host immunity system regarding SARs-CoV-2 within a computational approach, concluding SARS-CoV2 may manipulate this system of immunity against its host, requiring further research. Mu et al., 2020 suggest SARs-CoV2 suppresses RNAi thus preventing recognition by the encoded ribonuclease dicer protein Viral suppressors of RNA silencing (VSRs) suppress RNAi at pre or post-dicer level to overcome host defense and establish infection. Cui et al. (2015) from Wuhan University laboratory of virology, identified a novel VSR from coronaviruses (CoVs) including Severe acute respiratory syndrome coronavirus (SARS-CoV) and showed that the coronavirus nucelocaspid protein (N-protein), conserved and expressed in all coronaviruses, suppressed RNAi triggered by either short hairpin RNAs or small interfering RNAs in mammalian cells. They went on to show using mouse hepatitis virus A-59 (MHV-A59) which is closely linked to SARS-CoV in the family coronaviridae, that the viral replication was increased when the N proteins (novel VSR) were expressed but that knockdown of DICER1 gene or Ago2 transcripts facilitated the viral replication specifically in mammalian cells. They demonstrate that the N-protein of CoVs could efficiently inhibit dicer-mediated dsRNA cleavage and post-Dicer activities by sequestering dsRNAs and siRNAs. Kannan et al. (2020) performed clustal W analysis of N-Protein for SARS-CoV and COVID-19 demonstrating 90% sequence identity from an NCBI amino acid blast of both nucleocapsid (N) protein sequences (figure2). They suggest that the N-protein of COVID-19 may also function as a VSR for RNAi to overcome host defense. Ding et al. (2017) show that both MHV and SARS-CoV N proteins can also disrupt protein activator of protein kinase R (PACT), a cellular dsRNA-binding protein which binds to RIG-I and MDA5 to activate interferon (IFN) production to prevent antiviral host response. Literature Review PMID: 17181864: Bennasser and Jeang, 2006 • HIV-1 Tat Interaction With Dicer: Requirement for RNA • Tat-Dicer interaction depends on RNA, requires the helicase domain of Dicer, and is independent of Tat's transactivation domain. PMID: 18325616: Chen et al., 2008 • HCV Core Protein Interacts With Dicer to Antagonize RNA Silencing PMID: 26085159: Cui et al., 2015 • The Nucleocapsid Protein of Coronaviruses Acts as a Viral Suppressor of RNA Silencing in Mammalian Cells PMID: 24303839: Devasthanam et al, 2014 • This study investigates the role of the dicer protein in immune cell development and function using dicer1 cre-lox knockout models to conditionally ablate dicer1 in different immune cell subsets. PMID: 28591694: Ding et al., 2017 • The nucleocapsid proteins of mouse hepatitis virus and severe acute respiratory syndrome coronavirus share the same IFN-β antagonizing mechanism: attenuation of PACT-mediated RIG-I/MDA5 activation PMID: 30015086: Ding et al., 2018 • Antiviral RNA Interference in Mammals: Indicates infection of plants and insects with RNA and DNA viruses triggers Dicer-dependent production of virus-derived small interfering RNAs (vsiRNAs), which subsequently guide specific virus clearance by RNA interference (RNAi). PMID: 25176334: Foulkes et al., 2012-REVIEW • Review of DICER1: DICER1 Mutations, microRNAs and Mechanisms PMID: 16554838: Galiana-Arnoux et al., 2006 • Essential function in vivo for Dicer-2 in host defense against RNA viruses in drosophila. • https://pubmed.ncbi.nlm.nih.gov/16554838/ or https://www.nature.com/articles/ni1335 PMID: 21385408: Inchley et al., 2011 • Investigates ribonuclease Dicer and analyzed the gene expression of Dicer in newborns of which 37 infants had sufficient cord blood RNA with confirmed RSV disease <1yr. Demonstrates significant reduced Dicer expression in cord blood prior to severe disease in infants <1yr later. Conclude downregulation may predispose infants to RSV disease. PMID: 32141569: Kannan et al., 2020 • COVID-19 (Novel Coronavirus 2019) - Recent Trends • Perform W cluster analysis of COVID-19 and SARS-CoV nucleocapsid (N) protein sequences of the viruses showing 90% amino acid sequence similarity. Suggest the N-protein may be a VSR in RNAi by targeting DICER. PMID: 23849790: Klockow et al., 2013 • The HIV-1 Protein Vpr Targets the Endoribonuclease Dicer for Proteasomal Degradation to Boost Macrophage Infection PMID: 25883138: Kurzynska-Kokorniak et al., 2015 • Investigating the complexity of the mechanisms regulating Dicer gene expression and enzyme activities PMID: 24115437: Li et al, 2013 • Investigates RNA interference pathways in antiviral immunity in mammals overviewing dicer processing of dsRNA viral replication intermediates into siRNAs. PMID: 27273616: Machitani et al., 2016 • Dicer functions as an antiviral system against human adenoviruses via cleavage of adenovirus-encoded noncoding RNA PMID: 30872283: Maillard et al., 2019- REVIEW • Reviewing DICER1 within the anti-viral RNAi pathway in mammals PMID: 30682089: Modai et al, 2019 • HIV-1 infection increases miRNAs which inhibit Dicer PMID: 32291557: Mu et al, 2020 • SARS-CoV-2-encoded nucleocapsid protein acts as a viral suppressor of RNA interference in cells PMID: 16009718: Muljo et al., 2005 • Indicates absence of dicer results in abberant T-cell differentiation. PMID: 17613256: Otsuka, et al 2007 • Hypersusceptibility to Vesicular Stomatitis Virus Infection in Dicer1-Deficient Mice Is Due to Impaired miR24 and miR93 Expression No PMID: Preprint : Pasquier and Rubichon, 2020 • SARS-CoV-2 might manipulate against its host the immunity RNAi/Dicer/Ago system PMID: 22438534: Qi et al., 2012 • Targeting of Dicer-2 and RNA by a Viral RNA Silencing Suppressor in Drosophila Cells PMID: 28473628: Song and Rossi, 2017 • Molecular Mechanisms of Dicer: Endonuclease and Enzymatic Activity |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | ATF3 |
Rebecca Foulger changed review comment from: Evidence Summary from Illumina curation team: The Activating Transcription Factor 3 (ATF3) is a member of the ATF/cAMP Responsive Element-Binding (CREB) family of transcription factors which are known to be induced during inflammation and genotoxic stress. The modulation and elevation of ATF3 levels has also been observed in different host cells types upon infection with viruses, including the coronavirus, HCoV-229E and the Japanese encephalitis virus (JEV), a RNA neurotropic flavivirus (Poppe et al. 2016; Sood et al. (2017). In a mouse neuronal cell line infected with JEV, Atf3 was shown to bind to the promoter of viral response genes including Stat1, Irf9, Isg15, and to negatively regulate their expression (Sood et al. (2017). In addition, cellular autophagy was also inhibited by Atf3 negative regulation of the autophagy gene Atg5 in cells infected with the same virus (Sood et al. (2017). Labzin et al. (2015) also showed reduced viral replication in primary bone marrow–derived macrophages derived from Atf3 deficient mice, a phenotype which could be rescued by overexpression of Atf3. PMID: 28355270: Poppe et al. (2016) -The A549 lung epithelial carcinoma cell model was used to assess host cell transcriptional changes upon infection of the corona virus HCoV-229E. At 16 h and 48 h post transfection, cell transcriptomes were analysed by microarray containing 60,000 probes covering annotated genes and non-coding RNAs. Thirty seven genes, including ATF3 were upregulated in response to the HCoV-229E infection when compared to mock transduced cells (Fig 1). Upregulation of ATF3 was confirmed by RT-PCR analysis of laser dissected cells (Fig 1E). PMID 28821775; Sood et al. (2017) - ATF3 is induced following Japanese encephalitis virus (JEV) infection, and regulates cellular antiviral and autophagy pathways in the absence of type I interferons in mouse neuronal cells. ATF3 was induced in mammalian cells following JEV infection, using qRTPCR analysis of transduced cell lines, including mouse Neuro2a, HEK293, HeLa and MEFs ATF3 levels were elevated compared to wildtype (Fig1). Fig2: ATF3 acts as a negative regulator of the antiviral response. Knockdown of ATF3 expression using Atf3 specific siRNA lead to a relative increased expression of viral response genes including Rig1, ifih1, ddx60, Gbp1, compared to controls. Fig4 CHIP analysis showed that ATF3 binds to the promoter of antiviral genes such as Stat1, Irf9, Isg15, Ifit1. Fig5 ATF3 negatively regulates cellular autophagy, in both Neur2a cells and MEFs infected with JEV and treated with Atf3 siRNA showed a relative increase in the expression of cellular autophagy related genes as determined by RTPCR. Fig 6. CHIP analysis showed that ATF3 binds the ATG5 promoter. Taken together this series of experiments demonstrate that, in cells deficient in interferon type I, the increased expression of ATF3 induced by infection of JEV leads to the negative regulation of antiviral genes such as Stat1, Irf9, Isg15 and genes related to cellular autophagy such as ATG5. PMID 26416280; Labzin et al. (2015) - ATF3 limits cellular inflammatory response to microbial infection by regulating the expression of cytokines and chemokines. Primary bone marrow–derived macrophages from ATF3-/- mice infected with LCMV showed reduced viral replication compared to WT (Fig 7). The same cells overexpressing ATF3 constructs showed an increase in viral replication.; to: Evidence Summary from Illumina curation team: The Activating Transcription Factor 3 (ATF3) is a member of the ATF/cAMP Responsive Element-Binding (CREB) family of transcription factors which are known to be induced during inflammation and genotoxic stress. The modulation and elevation of ATF3 levels has also been observed in different host cells types upon infection with viruses, including the coronavirus, HCoV-229E and the Japanese encephalitis virus (JEV), a RNA neurotropic flavivirus (Poppe et al. 2016; Sood et al. (2017). In a mouse neuronal cell line infected with JEV, Atf3 was shown to bind to the promoter of viral response genes including Stat1, Irf9, Isg15, and to negatively regulate their expression (Sood et al. (2017). In addition, cellular autophagy was also inhibited by Atf3 negative regulation of the autophagy gene Atg5 in cells infected with the same virus (Sood et al. (2017). Labzin et al. (2015) also showed reduced viral replication in primary bone marrow–derived macrophages derived from Atf3 deficient mice, a phenotype which could be rescued by overexpression of Atf3. PMID: 28355270: Poppe et al. (2016) -The A549 lung epithelial carcinoma cell model was used to assess host cell transcriptional changes upon infection of the corona virus HCoV-229E. At 16 h and 48 h post transfection, cell transcriptomes were analysed by microarray containing 60,000 probes covering annotated genes and non-coding RNAs. Thirty seven genes, including ATF3 were upregulated in response to the HCoV-229E infection when compared to mock transduced cells (Fig 1). Upregulation of ATF3 was confirmed by RT-PCR analysis of laser dissected cells (Fig 1E). PMID 28821775; Sood et al. (2017) - ATF3 is induced following Japanese encephalitis virus (JEV) infection, and regulates cellular antiviral and autophagy pathways in the absence of type I interferons in mouse neuronal cells. ATF3 was induced in mammalian cells following JEV infection, using qRTPCR analysis of transduced cell lines, including mouse Neuro2a, HEK293, HeLa and MEFs ATF3 levels were elevated compared to wildtype (Fig1). Fig2: ATF3 acts as a negative regulator of the antiviral response. Knockdown of ATF3 expression using Atf3 specific siRNA lead to a relative increased expression of viral response genes including Rig1, ifih1, ddx60, Gbp1, compared to controls. Fig4 CHIP analysis showed that ATF3 binds to the promoter of antiviral genes such as Stat1, Irf9, Isg15, Ifit1. Fig5 ATF3 negatively regulates cellular autophagy, in both Neur2a cells and MEFs infected with JEV and treated with Atf3 siRNA showed a relative increase in the expression of cellular autophagy related genes as determined by RTPCR. Fig 6. CHIP analysis showed that ATF3 binds the ATG5 promoter. Taken together this series of experiments demonstrate that, in cells deficient in interferon type I, the increased expression of ATF3 induced by infection of JEV leads to the negative regulation of antiviral genes such as Stat1, Irf9, Isg15 and genes related to cellular autophagy such as ATG5. PMID 26416280; Labzin et al. (2015) - ATF3 limits cellular inflammatory response to microbial infection by regulating the expression of cytokines and chemokines. Primary bone marrow–derived macrophages from ATF3-/- mice infected with LCMV showed reduced viral replication compared to WT (Fig 7). The same cells overexpressing ATF3 constructs showed an increase in viral replication. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | ATF3 |
Rebecca Foulger commented on gene: ATF3: Evidence Summary from Illumina curation team: The Activating Transcription Factor 3 (ATF3) is a member of the ATF/cAMP Responsive Element-Binding (CREB) family of transcription factors which are known to be induced during inflammation and genotoxic stress. The modulation and elevation of ATF3 levels has also been observed in different host cells types upon infection with viruses, including the coronavirus, HCoV-229E and the Japanese encephalitis virus (JEV), a RNA neurotropic flavivirus (Poppe et al. 2016; Sood et al. (2017). In a mouse neuronal cell line infected with JEV, Atf3 was shown to bind to the promoter of viral response genes including Stat1, Irf9, Isg15, and to negatively regulate their expression (Sood et al. (2017). In addition, cellular autophagy was also inhibited by Atf3 negative regulation of the autophagy gene Atg5 in cells infected with the same virus (Sood et al. (2017). Labzin et al. (2015) also showed reduced viral replication in primary bone marrow–derived macrophages derived from Atf3 deficient mice, a phenotype which could be rescued by overexpression of Atf3. PMID: 28355270: Poppe et al. (2016) -The A549 lung epithelial carcinoma cell model was used to assess host cell transcriptional changes upon infection of the corona virus HCoV-229E. At 16 h and 48 h post transfection, cell transcriptomes were analysed by microarray containing 60,000 probes covering annotated genes and non-coding RNAs. Thirty seven genes, including ATF3 were upregulated in response to the HCoV-229E infection when compared to mock transduced cells (Fig 1). Upregulation of ATF3 was confirmed by RT-PCR analysis of laser dissected cells (Fig 1E). PMID 28821775; Sood et al. (2017) - ATF3 is induced following Japanese encephalitis virus (JEV) infection, and regulates cellular antiviral and autophagy pathways in the absence of type I interferons in mouse neuronal cells. ATF3 was induced in mammalian cells following JEV infection, using qRTPCR analysis of transduced cell lines, including mouse Neuro2a, HEK293, HeLa and MEFs ATF3 levels were elevated compared to wildtype (Fig1). Fig2: ATF3 acts as a negative regulator of the antiviral response. Knockdown of ATF3 expression using Atf3 specific siRNA lead to a relative increased expression of viral response genes including Rig1, ifih1, ddx60, Gbp1, compared to controls. Fig4 CHIP analysis showed that ATF3 binds to the promoter of antiviral genes such as Stat1, Irf9, Isg15, Ifit1. Fig5 ATF3 negatively regulates cellular autophagy, in both Neur2a cells and MEFs infected with JEV and treated with Atf3 siRNA showed a relative increase in the expression of cellular autophagy related genes as determined by RTPCR. Fig 6. CHIP analysis showed that ATF3 binds the ATG5 promoter. Taken together this series of experiments demonstrate that, in cells deficient in interferon type I, the increased expression of ATF3 induced by infection of JEV leads to the negative regulation of antiviral genes such as Stat1, Irf9, Isg15 and genes related to cellular autophagy such as ATG5. PMID 26416280; Labzin et al. (2015) - ATF3 limits cellular inflammatory response to microbial infection by regulating the expression of cytokines and chemokines. Primary bone marrow–derived macrophages from ATF3-/- mice infected with LCMV showed reduced viral replication compared to WT (Fig 7). The same cells overexpressing ATF3 constructs showed an increase in viral replication. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | IDE | Alison Coffey commented on gene: IDE: Evidence Summary from Illumina curation team: Insulin-degrading enzyme (IDE), also known as insulysin, is a member of the zinc metalloproteinase family that was initially implicated in insulin degradation. It is highly conserved among different species and has the ability to interact with a variety of functionally unrelated ligands that share little homology in their primary amino acid sequences. Several human viruses use enzymes as receptors. Li et al. (2006) (PMID 17055432) established IDE as a cellular receptor for both cell-free and cell-associated Varicella-zoster virus (VZV), the cause of chickenpox and shingles in humans. VZV is likely spread as cell-free virus to susceptible hosts but transmitted by cell-to-cell spread in the body and in vitro. Li et al. (2006) showed that IDE interacts with the VZV glycoprotein E (gE) (which is essential for virus infection) through its extracellular domain. Downregulation of IDE by siRNA, or blocking of IDE with antibody, with soluble IDE protein extracted from liver, or with bacitracin inhibited VZV infection. Cell-to-cell spread of virus was also impaired by blocking IDE. Transfection of cell lines impaired for VZV infection with a plasmid expressing human IDE resulted in increased entry and enhanced infection with cell-free and cell-associated virus. Li et al. (2010) subsequently reported that a recombinant soluble IDE (rIDE) enhanced VZV infectivity at an early step of infection associated with an increase in virus internalization, and increased cell-to-cell spread. In 2017, Hahn et al. demonstrated that mature HIV-1 p6 protein (stability of which inversely affects the replication capacity of HIV-1) is a substrate for IDE. IDE is both sufficient and required for the degradation of p6, which is approximately 100-fold more efficiently degraded by IDE than its eponymous substrate insulin. An IDE specific inhibitor, 6bK, and exogenous insulin, were both shown to interfere with X4-tropic HIV-1 replication in activated PBMCs, most probably by competing with p6 for degradation by IDE. In addition, an IDE-insensitive p6 mutant of HIV-1 exhibits impaired replication capacity but is insensitive to treatment with insulin or 6bK. Conversely, neither virus release and maturation, nor the amounts of particle associated Vpr and p6 itself were altered in IDE knock out cells. The data support a model in which IDE is responsible for the rapid degradation of p6 entering the cell as part of the incoming virion, a process that appears to be crucial to achieve optimal X4-tropic virus replication. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | BANF1 | Alison Coffey commented on gene: BANF1: Evidence Summary from Illumina curation team: BANF1 is an abundant, highly conserved DNA binding protein involved in multiple pathways including mitosis, nuclear assembly, viral infection, chromatin and gene regulation and the DNA damage response. It is also essential for early development in metazoans and relevant to human physiology. Variants in the gene are associated with Nestor-Guillermo progeria syndrome (OMIM #614008). Different viral infections can lead to changes in the subcellular distribution of BANF1 infections with a B1 kinase-deficient vaccinia virus cause re-localization at sites of viral DNA accumulation in the cytoplasm, while no change in localization is found during infection with wild-type vaccinia. By contrast, in cells infected with Herpes Simplex Virus Type-1 (HSV-1) BAF localizes to the nucleus, where HSV-1 viral DNA replicates. BANF1 actively protects the genome by intercepting foreign DNA. This protective function is exploited by retroviruses for inhibiting self-destructing autointegration of retroviral DNA, thereby promoting integration of viral DNA into the host chromosome. However, with other viruses, including the poxvirus vaccinia and HSV-1, BANF1 has an antiviral activity by blocking viral DNA replication (PMID 2607214: Jamin et al. 2015). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | VPS33A | Alison Coffey commented on gene: VPS33A: Evidence Summary from Illumina curation team: VPS33A is a member of the Sec1/Munc18-related (SM) protein family and a core component of the class C core vacuole/endosome tethering (CORVET) and the homotypic fusion and protein sorting (HOPS) complexes (Vasilev et al. 2020). Both complexes are heterohexamers and share four subunits. VPS33A, VPS11, VPS16 and VPS18, involved in endolysosomal pathway. Deficiency of VPS33A was shown to affect susceptibility to certain viruses in cell culture, including Ebola and Marburg viruses (Carette et al. 2011), however no human studies confirming this association were identified. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | MX2 | Alison Coffey commented on gene: MX2: Evidence Summary from Illumina curation team: MX2, also known as MXB is an interferon-induced dynamin like GTPAse with antiviral activity, which has been shown to affect the nuclear uptake and/or stability of the HIV-1 replication complex and the subsequent chromosomal integration of the proviral DNA (Goujon et al. 2013, Liu et al. 2015). However, resistance of several HIV strains to MX2-driven inhibition has been reported (Liu et al. 2015). Inhibition of other viruses, including HCV, Japanese encephalitis virus and Dengue virus of the Flaviviridae family as well as simian immunodeficiency virus and Herpesviruses has been reported (Goujon et al. 2013, Yi et al. 2019). In contrast to MX1, MX2 does not appear to be involved in regulation of several other viral infections, including influenza and Zika virus (Melen et al. 1996; Yi et al. 2019). Additionally, MX2 may be involved in nucleocytoplasmic transport and bears a nuclear localisation signal that appears essential for HCV inhibition (Melen et al. 1996; King et al. 2004, Yi et al. 2019). Of note, MX2 was described as an interferon response marker gene in preprint studies investigating expression profiles and related mechanisms in SARS-CoV-2 infection (Fagone et al. 2020, Li et al. 2020). Overall, inhibition of viral infection by MX2 appears to be virus type- and strain-specific, and some viruses potentially have developed mechanisms to resist MX2 function. No reports of any SNP associations of MX2 with viral susceptibility in humans have been identified. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | IL9 | Alison Coffey commented on gene: IL9: Evidence Summary from Illumina curation team: IL9 encodes interleukin 9, which is a stimulatory cytokine that regulates inflammatory immunity (Goswami and Kaplan 2011). It has been demonstrated that high levels of IL-9 are present in nasopharyngeal aspirate of infants with disease of the respiratory tract caused by the Human respiratory syncytial virus (RSV) (Semple et al. 2007). Studies conducted on mice showed that that the severity of lung pathology correlates with IL-9 cytokine production and that Th9 cells, which produce IL-9, play an important role in the development of airway eosinophilia and bronchial hyperresponsiveness (Dodd et al. 2009; Saeki et al. 2016). IL9 polymorphisms have also been linked to sex-restricted differences in lung function, allergen sensitization, IgE levels, and the severity of respiratory syncytial virus infection (Schuurhof et al. 2010; Aschard et al. 2009). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | GPR183 | Alison Coffey commented on gene: GPR183: Evidence Summary from Illumina curation team: The GPR183 gene has been shown to be upregulated following infection with Epstein-Barr virus and aids in leukocyte migration into airways in response to allergens (Shen et al. 2017). GPR183 knockout mice exhibit enhanced pro-inflammatory cytokine release following an inflammation-inducing stimulus (Ruthiwska et al. 2018). In addition, recent work that has not yet been peer-reviewed found GPR183 expression on macrophages in severe Covid 19 patients (Liao et al.; https://doi.org/10.1101/2020.02.23.20026690). EBV seropositivity was also associated with fever and increased inflammation in Covid 19 patients in non-peer-reviewed work by Chen et al. (10.21203/rs.3.rs-21580/v1). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.347 | AIM2 | Alison Coffey commented on gene: AIM2: Evidence summary from Illumina curation team: AIM2 performs an established role within the innate immune system as a pattern recognition receptor which senses microbial dsDNA. In vitro experiments have shown that AIM2 recognises cytosolic dsDNA from a number of viruses and consequently drives pyroptosis through formation of an inflammasome complex (Sharma et al. 2019). Aim2-deficient mice show an attenuated immune response upon infection with mCNV when compared to wildtype mice (Rathinam et al. 2010). PMID: 31372985 Sharma et al. 2019 (Review) AIM2 encodes a pattern recognition receptor which senses microbial dsDNA. In vitro experiments show AIM2 recognises cytosolic dsDNA from a number of viruses and consequently drives pyroptosis through formation of an inflammasome complex. AIM2 expression is upregulated in response to infection by RNA viruses and contributes to secretion of IL-1beta, the mechanism for the recognition of RNA viruses is unclear. Table 1 summarises the list of in vitro AIM2 virus studies. PMID: 20351692: Rathinam et al. 2010 In vivo, Aim2-deficient mice, Aim2- infected with mCMV have reduced IL-18 concentrations in the serum compared to wildtype mice, and severely attenuated IFN-? production by NK cells, events, which are critical for the early control of viral replication (Figure 7b, d, e) The spleen of infected Aim2-/- mice demonstrated elevated viral titre compared to the wildtype (Fig 7h, i). PMID: 26590313 Schattgen et al. 2018 Aim2 knockout mice, infected with influenza A virus (RNA virus) showed an exaggerated response to immune response. Authors suggest that host DNA released from damaged cells during IAV infection and sensed by AIM2 leads to limitation of immune mediated damage to infected tissues. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.334 | ABCB1 | Ivone Leong edited their review of gene: ABCB1: Added comment: Searching through PubMed, most of the papers related to ABCB1 are to do with drug efficacy and ABCB1's affect on HIV-1 treatments. Therefore, this gene should remain rated Red.; Changed rating: RED | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.327 | APOE |
Eleanor Williams changed review comment from: PMID: 32451547 - Kuo et al 2020 - Using UK biobank data they found that the ApoE e4 allele ( rs429358) increases risks of being hospitalized with COVID-19, independent of pre-existing dementia, cardiovascular disease, and type-2 diabetes. ApoE e4 allele frequency is higher in people of African ancestry than in Europeans, and preliminary results suggest that ApoE e4 prevalence makes a modest contribution to the excess incidence of COVID-19 in Blacks. (Originially added to the panel as preprint: https://doi.org/10.1101/2020.05.07.20094409) Sources: Literature; to: PMID: 32451547 - Kuo et al 2020 - Using UK biobank data they found that the ApoE e4 allele ( rs429358) increases risks of being hospitalized with COVID-19, independent of pre-existing dementia, cardiovascular disease, and type-2 diabetes. ApoE e4e4 homozygotes were more likely to be COVID-19 test positives compared to e3e3 homozygotes. ApoE e4 allele frequency is higher in people of African ancestry than in Europeans, and preliminary results suggest that ApoE e4 prevalence makes a modest contribution to the excess incidence of COVID-19 in Blacks. (Originially added to the panel as preprint: https://doi.org/10.1101/2020.05.07.20094409) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.326 | APOE |
Eleanor Williams changed review comment from: Preprint: https://doi.org/10.1101/2020.05.07.20094409 Kuo et al 2020 - Using UK biobank data they found that the ApoE e4 allele ( rs429358) increases risks of being hospitalized with COVID-19, independent of pre-existing dementia, cardiovascular disease, and type-2 diabetes. ApoE e4 allele frequency is higher in people of African ancestry than in Europeans, and preliminary results suggest that ApoE e4 prevalence makes a modest contribution to the excess incidence of COVID-19 in Blacks. Sources: Literature; to: PMID: 32451547 - Kuo et al 2020 - Using UK biobank data they found that the ApoE e4 allele ( rs429358) increases risks of being hospitalized with COVID-19, independent of pre-existing dementia, cardiovascular disease, and type-2 diabetes. ApoE e4 allele frequency is higher in people of African ancestry than in Europeans, and preliminary results suggest that ApoE e4 prevalence makes a modest contribution to the excess incidence of COVID-19 in Blacks. (Originially added to the panel as preprint: https://doi.org/10.1101/2020.05.07.20094409) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.317 | TBX21 |
Ivone Leong gene: TBX21 was added gene: TBX21 was added to COVID-19 research. Sources: Expert list Mode of inheritance for gene: TBX21 was set to Unknown Publications for gene: TBX21 were set to 15806396; 17378728; 19473434; 29399747 Phenotypes for gene: TBX21 were set to {Asthma, aspirin-induced, susceptibility to}, 208550; susceptibility to chronic HBV and HCV infection Review for gene: TBX21 was set to AMBER Added comment: TBX21 is a Th1-specific T-box transcription factor that controls the expression of the hallmark Th1 cytokine, interferon-gamma (PMID: 15806396). PMID: 17378728 found that variations at allele -1499 and haplotype D (--/AC) in the TBX21 promoter region contribute to susceptibility to HBV infection in the Chinese population. PMID: 19473434 found that T-1993C polymorphism in the TBX21 promoter influences susceptibility to persistent HBV infection. PMID: 29399747 found that rs4794067 (T-1993C) is significantly correlated with increased risk of HCV chronic infection (dominant model: OR = 5.690, 95% CI = 2.024-16.000) and susceptibility (dominant model: OR = 5.658, 95% CI = 2.514-12.735). Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.308 | SERINC3 |
Catherine Snow changed review comment from: Curation by Illumina clinical curators contributing to Covid-19 effort. Curation on all OMIM genes which hit the term "virus". No current gene disease relationship in OMIM. The human immunodeficiency virus (HIV)-1 Nef protein and the unrelated murine leukemia virus (MLV) glycosylated Gag (glycoGag) protein enhance HIV-1 infectivity. Usami et al. (2015) found that silencing both SERINC3 and SERINC5 (614551) precisely phenocopied the effects of Nef and glycoGag on HIV-1 infectivity. CD4-positive T cells lacking both SERINC3 and SERINC5 showed significantly increased susceptibility to Nef-deficient virions. SERINC3 and SERINC5 together restricted HIV-1 replication, and this restriction was evaded by Nef. Usami et al. (2015) proposed that inhibiting Nef-mediated downregulation of SERINC3 and SERINC5, which are normally highly expressed in HIV-1 target cells, has the potential to combat HIV/AIDS. Screening human cell lines and using CRISPR-Cas9 analysis, Rosa et al. (2015) found that SERINC5, and to a lesser extent SERINC3 (607165), inhibited infectivity of human immunodeficiency virus (HIV)-1 (see 609423) and murine leukemia retrovirus (MLV) Sources: Literature; to: Curation by Illumina clinical curators contributing to Covid-19 effort. Curation on all OMIM genes which hit the term "virus". No current gene disease relationship in OMIM. The human immunodeficiency virus (HIV)-1 Nef protein and the unrelated murine leukemia virus (MLV) glycosylated Gag (glycoGag) protein enhance HIV-1 infectivity. Usami et al. (2015) found that silencing both SERINC3 and SERINC5 (614551) precisely phenocopied the effects of Nef and glycoGag on HIV-1 infectivity. CD4-positive T cells lacking both SERINC3 and SERINC5 showed significantly increased susceptibility to Nef-deficient virions. SERINC3 and SERINC5 together restricted HIV-1 replication, and this restriction was evaded by Nef. Usami et al. (2015) proposed that inhibiting Nef-mediated downregulation of SERINC3 and SERINC5, which are normally highly expressed in HIV-1 target cells, has the potential to combat HIV/AIDS. Screening human cell lines and using CRISPR-Cas9 analysis, Rosa et al. (2015) found that SERINC5, and to a lesser extent SERINC3, inhibited infectivity of human immunodeficiency virus (HIV)-1 and murine leukemia retrovirus (MLV) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.307 | SERINC3 |
Catherine Snow changed review comment from: Curation by Illumina clinical curators contributing to Covid-19 effort. Curation on all OMIM genes which hit the term "virus". No current gene disease relationship in OMIM. The human immunodeficiency virus (HIV)-1 Nef protein and the unrelated murine leukemia virus (MLV) glycosylated Gag (glycoGag) protein enhance HIV-1 infectivity. Usami et al. (2015) found that silencing both SERINC3 and SERINC5 (614551) precisely phenocopied the effects of Nef and glycoGag on HIV-1 infectivity. CD4-positive T cells lacking both SERINC3 and SERINC5 showed significantly increased susceptibility to Nef-deficient virions. SERINC3 and SERINC5 together restricted HIV-1 replication, and this restriction was evaded by Nef. Usami et al. (2015) proposed that inhibiting Nef-mediated downregulation of SERINC3 and SERINC5, which are normally highly expressed in HIV-1 target cells, has the potential to combat HIV/AIDS. Sources: Literature; to: Curation by Illumina clinical curators contributing to Covid-19 effort. Curation on all OMIM genes which hit the term "virus". No current gene disease relationship in OMIM. The human immunodeficiency virus (HIV)-1 Nef protein and the unrelated murine leukemia virus (MLV) glycosylated Gag (glycoGag) protein enhance HIV-1 infectivity. Usami et al. (2015) found that silencing both SERINC3 and SERINC5 (614551) precisely phenocopied the effects of Nef and glycoGag on HIV-1 infectivity. CD4-positive T cells lacking both SERINC3 and SERINC5 showed significantly increased susceptibility to Nef-deficient virions. SERINC3 and SERINC5 together restricted HIV-1 replication, and this restriction was evaded by Nef. Usami et al. (2015) proposed that inhibiting Nef-mediated downregulation of SERINC3 and SERINC5, which are normally highly expressed in HIV-1 target cells, has the potential to combat HIV/AIDS. Screening human cell lines and using CRISPR-Cas9 analysis, Rosa et al. (2015) found that SERINC5, and to a lesser extent SERINC3 (607165), inhibited infectivity of human immunodeficiency virus (HIV)-1 (see 609423) and murine leukemia retrovirus (MLV) Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.307 | SERINC3 |
Catherine Snow gene: SERINC3 was added gene: SERINC3 was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: SERINC3 was set to Unknown Review for gene: SERINC3 was set to AMBER Added comment: Curation by Illumina clinical curators contributing to Covid-19 effort. Curation on all OMIM genes which hit the term "virus". No current gene disease relationship in OMIM. The human immunodeficiency virus (HIV)-1 Nef protein and the unrelated murine leukemia virus (MLV) glycosylated Gag (glycoGag) protein enhance HIV-1 infectivity. Usami et al. (2015) found that silencing both SERINC3 and SERINC5 (614551) precisely phenocopied the effects of Nef and glycoGag on HIV-1 infectivity. CD4-positive T cells lacking both SERINC3 and SERINC5 showed significantly increased susceptibility to Nef-deficient virions. SERINC3 and SERINC5 together restricted HIV-1 replication, and this restriction was evaded by Nef. Usami et al. (2015) proposed that inhibiting Nef-mediated downregulation of SERINC3 and SERINC5, which are normally highly expressed in HIV-1 target cells, has the potential to combat HIV/AIDS. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.303 | ACE2 |
Eleanor Williams changed review comment from: Preprint: Gupta et al https://doi.org/10.1101/2020.05.15.098616 Using the Viral Integrated Structural Evolution Dynamic Database and population genomic databases they identified 47 potential functional missense variants within ACE2/SLC6A19/TMPRSS2, warranting genomic enrichment analyses in SARS-CoV-2 patients. Two noncoding variants (rs4646118 and rs143185769) found in ~9% of African descent individuals for ACE2 may regulate expression and be related to increased susceptibility of African Americans to SARS-CoV-2.; to: Preprint: Gupta et al https://doi.org/10.1101/2020.05.15.098616 Using the Viral Integrated Structural Evolution Dynamic Database and population genomic databases they identified 47 potential functional missense variants within ACE2/SLC6A19/TMPRSS2, warranting genomic enrichment analyses in SARS-CoV-2 patients. Two noncoding variants (rs4646118 and rs143185769) found in ~9% of African descent individuals for ACE2 may regulate expression and be related to increased susceptibility of African Americans to SARS-CoV-2. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.303 | ACE2 |
Eleanor Williams edited their review of gene: ACE2: Added comment: Preprint: Gupta et al https://doi.org/10.1101/2020.05.15.098616 Using the Viral Integrated Structural Evolution Dynamic Database and population genomic databases they identified 47 potential functional missense variants within ACE2/SLC6A19/TMPRSS2, warranting genomic enrichment analyses in SARS-CoV-2 patients. Two noncoding variants (rs4646118 and rs143185769) found in ~9% of African descent individuals for ACE2 may regulate expression and be related to increased susceptibility of African Americans to SARS-CoV-2.; Changed publications: 32015507, https://doi.org/10.1101/2020.05.15.098616 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.303 | TMPRSS4 |
Eleanor Williams gene: TMPRSS4 was added gene: TMPRSS4 was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: TMPRSS4 was set to Unknown Publications for gene: TMPRSS4 were set to https://doi.org/10.1101/2020.05.12.091314 Added comment: Preprint: Wruck and Adjaye https://doi.org/10.1101/2020.05.12.091314 - describe a meta-analysis focussing on the transcriptome data from human lung epithelial cells including samples infected with SARS-CoV-2 from a study described by Blanco Melo et al.12. The exploration was directed to co-expression with the known CoV-2 receptor ACE2. 72 genes significantly co-expressed with ACE2. Of the transmembrane serine proteases, the most significantly coexpressed with ACE2 was TMPRSS4, suggesting it to be a putative druggable target. Pathway analysis revealed papilloma virus infection amongst the most significantly correlated pathways. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.302 | TMPRSS11A |
Eleanor Williams gene: TMPRSS11A was added gene: TMPRSS11A was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: TMPRSS11A was set to Unknown Publications for gene: TMPRSS11A were set to https://doi.org/10.1101/2020.05.13.093690 Review for gene: TMPRSS11A was set to RED Added comment: Preprint: Klaassen et al https://doi.org/10.1101/2020.05.13.093690 - performed analysis of variants in FURIN, PLG, PRSS1, TMPRSS11a, MBL2 and OAS1 genes in 143 unrelated individuals from Serbian population and identified 22 variants with potential functional effect. Then used in-silico prediction and comparative population analysis and found 2 rare variants p.Lys48Arg and p.Arg328Gln. For both of these variants, PolyPhen-2, SIFT and MutPred2 algorithms predict benign/tolerated effect but the protein structure of TMPRSS11a is not well known. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.301 | PRSS1 |
Eleanor Williams gene: PRSS1 was added gene: PRSS1 was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: PRSS1 was set to Unknown Publications for gene: PRSS1 were set to https://doi.org/10.1101/2020.05.13.093690 Added comment: Preprint: Klaassen et al https://doi.org/10.1101/2020.05.13.093690 - performed analysis of variants in FURIN, PLG, PRSS1, TMPRSS11a, MBL2 and OAS1 genes in 143 unrelated individuals from Serbian population and identified 22 variants with potential functional effect. Then used in-silico prediction and comparative population analysis and found two rare variants in the PRSS1 gene, c.592-8C>T and p.Asn54Lys. Variant c.592-8C>T was previously detected in patients with cystic fibrosis presenting with chronic pancreatitis and p.Asn54Lys is predicted to be possibly damaging. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.300 | PLG |
Eleanor Williams gene: PLG was added gene: PLG was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: PLG was set to Unknown Publications for gene: PLG were set to https://doi.org/10.1101/2020.05.13.093690 Review for gene: PLG was set to RED Added comment: Preprint: Klaassen et al https://doi.org/10.1101/2020.05.13.093690 - performed analysis of variants in FURIN, PLG, PRSS1, TMPRSS11a, MBL2 and OAS1 genes in 143 unrelated individuals from Serbian population and identified 22 variants with potential functional effect. Then used in-silico prediction and comparative population analysis and found 6 rare variants in PLG. p.Arg261His and p.Ala494Val are predicted to be probably damaging/deleterious. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.299 | FURIN |
Eleanor Williams commented on gene: FURIN: Preprint: Klaassen et al https://doi.org/10.1101/2020.05.13.093690 - performed analysis of variants in FURIN, PLG, PRSS1, TMPRSS11a, MBL2 and OAS1 genes in 143 unrelated individuals from Serbian population and identified 22 variants with potential functional effect. Then used in-silico prediction and comparative population analysis and found two rare variants in FURIN p.Thr33Ala and p.Gly146Ser. p.Gly146Ser. is predicted to be deleterious and may change its ability to cleave furin-like sites in the S protein of the SARS-CoV-2. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.297 | SCARB1 |
Eleanor Williams gene: SCARB1 was added gene: SCARB1 was added to COVID-19 research. Sources: Literature Mode of inheritance for gene: SCARB1 was set to Unknown Added comment: Not associated with any relevant disease phenotype in OMIM. SCARB1 is also known as SRB1 PMID: 12356718 - Scarselli et al 2002 - Characterization of hepatitis C virus (HCV) envelope glycoprotein E2 binding after chemical or enzymic modification of the cell surface led to the identification of the scavenger receptor type B class I (SR-BI) as the E2 receptor on HepG2 cells. PMID: 28827115 - Sadeghi et al 2017 - SCARB1 rs10846744 (CC) genotype (P=0.001) was strongly associated with sustained virological response PMID: 28363797 - Westhaus et al 2018 - Non-synonymous variants: S112F and T175A have greatly reduced Hepatitus C virus (HCV) receptor function. When present on the cell surface, these variants are impaired in their ability to interact with HCV E2. Non-coding variants: The G allele in rs3782287 is associated with decreased viral load. PMID: 29715527 - Naffari et al 2018 -looked at treatment responses in 395 treatment-naïve patients with chronic Hepatitus C Virus (CHC) genotype 1 treated with pegylated interferon-α and ribavirin. Rapid virologic response (RVR), complete early virologic response (cEVR) , and sustained virologic responseSVR were significantly associated with SCARB1 rs10846744 (CC). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.291 | MYH9 | Eleanor Williams commented on gene: MYH9: Not associated with any relevant phenotypes in OMIM. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.277 | MIF | Rebecca Foulger changed review comment from: PMID:30944975. de Souza et al 2019 demonstrate in mince that MIF is expressed during RSV infection and controls the release of pro-inflammatory cytokines from macrophages in an in vitro model.; to: PMID:30944975. de Souza et al 2019 demonstrate in mice that MIF is expressed during RSV infection and controls the release of pro-inflammatory cytokines from macrophages in an in vitro model. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.276 | MIF | Rebecca Foulger commented on gene: MIF: PMID:30944975. de Souza et al 2019 demonstrate in mince that MIF is expressed during RSV infection and controls the release of pro-inflammatory cytokines from macrophages in an in vitro model. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.273 | MICA | Rebecca Foulger Added comment: Comment on list classification: MICA was identified through an OMIM search for potential viral susceptibility genes. Based on initial triage by Illumina (Tier 5 grouping) and additional curation, upgraded rating from Red to Amber: A number of publications report association between MICA variants and HBV‐related hepatocellular carcinoma. Additional papers investigate MICA polymorphisms and response to viral infections/recovery (e.g. PMIDs:28925058, 15029237). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.270 | MICA | Rebecca Foulger changed review comment from: Publications on association between MICA variants and hepatitis B virus (HBV) infection and HBV‐related hepatocellular carcinoma (PMIDs:31419949, 29584564).; to: Several publications on association between MICA variants and hepatitis B virus (HBV) infection and HBV‐related hepatocellular carcinoma (PMIDs:31419949, 29584564,25270965). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.270 | MICA | Rebecca Foulger commented on gene: MICA: Publications on association between MICA variants and hepatitis B virus (HBV) infection and HBV‐related hepatocellular carcinoma (PMIDs:31419949, 29584564). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.235 |
Eleanor Williams Panel name changed from Viral susceptibility to COVID-19 research List of related panels changed from to Viral susceptibility |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.226 | SCN5A |
Eleanor Williams changed review comment from: PMID: 32380288 Giudicessi et al 2020 - discuss the potential of p.Ser1103Tyr-SCN5A to exacerbate outcome-related health disparities in the COVID-19 pandemic.; to: PMID: 32380288 Giudicessi et al 2020 - discuss the potential of p.Ser1103Tyr-SCN5A to exacerbate outcome-related health disparities in the COVID-19 pandemic. Keeping red for now, as this paper is speculation - no real data. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.224 | APOE |
Eleanor Williams gene: APOE was added gene: APOE was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: APOE was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: APOE were set to https://doi.org/10.1101/2020.05.07.20094409 Phenotypes for gene: APOE were set to dementia Added comment: Preprint: https://doi.org/10.1101/2020.05.07.20094409 Kuo et al 2020 - Using UK biobank data they found that the ApoE e4 allele ( rs429358) increases risks of being hospitalized with COVID-19, independent of pre-existing dementia, cardiovascular disease, and type-2 diabetes. ApoE e4 allele frequency is higher in people of African ancestry than in Europeans, and preliminary results suggest that ApoE e4 prevalence makes a modest contribution to the excess incidence of COVID-19 in Blacks. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.217 | MX1 |
Sarah Leigh gene: MX1 was added gene: MX1 was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: MX1 was set to Unknown Publications for gene: MX1 were set to 3162334; 14872030; 21935451; https://doi.org/10.1101/2020.05.04.075911 Review for gene: MX1 was set to AMBER Added comment: MX1 is an interferon-induced protein with antiviral activity (PMID 3162334). PMID 14872030 c.-88G>T was more frequent in 40 unrelated Japanese patients with subacute sclerosing panencephalitisis (associated with CNS infection with measles virus), than in 90 controls (0.42 in patients vs 0.29 in controls). Variant c.-88G>T results increased MX1 expression, the authors suggest that MX1 may paradoxically enable persistence of the virus in the CNS by attenuating viral gene expression and preventing complete immunologic clearance. PMID 21935451 concluded that genetic variation in the interferon response pathway is associated with risk for symptomatic West Nile viru infection and disease progression. Preprint https://doi.org/10.1101/2020.05.04.075911 Reports that rs35074065 of TMPRSS2 results in increased expression of the nearby gene MX1. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.216 | BST2 | Rebecca Foulger Added comment: Comment on list classification: Added to panel as a Red gene: present in latest release of UniProt COVID portal. Plays a role in tethering viruses to the host cell to block viral release. Recent research (PMID:31199522) shows interaction with SARS-CoV spike protein, which inhibits BST2 function and allows viral release. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.215 | BST2 |
Rebecca Foulger gene: BST2 was added gene: BST2 was added to Viral susceptibility. Sources: Literature,Other Mode of inheritance for gene: BST2 was set to Unknown Publications for gene: BST2 were set to 31199522 Added comment: BST2 is present in the UniProt COVID portal (11th May 2020 Release): https://covid-19.uniprot.org/uniprotkb/Q10589. BST2 is an IFN-induced antiviral host restriction factor which physically blocks the release of viruses by directly tethering nascent virions to the membranes of infected cells. Sources: Literature, Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.214 | KPNA2 | Rebecca Foulger Added comment: Comment on list classification: Added KPNA2 to the panel as a Red gene. Present in the latest UniProt COVID portal release based on functional data that show an interaction with SARS-COVID viral ORF6 protein. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.213 | KPNA2 |
Rebecca Foulger changed review comment from: KPNA2 present in the UniProt COVID portal (11th May 2020 Release): https://covid-19.uniprot.org/uniprotkb/P52292. KPNA2 acts as a nuclear import factor. KPNA2 is retained in ER/Golgi membranes upon interaction with SARS-COV virus ORF6 protein, and therefore KPNA2 is unable to transport STAT1 into the nucleus, therby blocking the expression of STAT1-activated genes that establish an antiviral state (PMID:17596301). Sources: Literature, Other; to: KPNA2 is present in the UniProt COVID portal (11th May 2020 Release): https://covid-19.uniprot.org/uniprotkb/P52292. KPNA2 acts as a nuclear import factor. KPNA2 is retained in ER/Golgi membranes upon interaction with SARS-COV virus ORF6 protein, and therefore KPNA2 is unable to transport STAT1 into the nucleus, therby blocking the expression of STAT1-activated genes that establish an antiviral state (PMID:17596301). Sources: Literature, Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.213 | KPNA2 |
Rebecca Foulger gene: KPNA2 was added gene: KPNA2 was added to Viral susceptibility. Sources: Literature,Other Mode of inheritance for gene: KPNA2 was set to Unknown Publications for gene: KPNA2 were set to 17596301 Added comment: KPNA2 present in the UniProt COVID portal (11th May 2020 Release): https://covid-19.uniprot.org/uniprotkb/P52292. KPNA2 acts as a nuclear import factor. KPNA2 is retained in ER/Golgi membranes upon interaction with SARS-COV virus ORF6 protein, and therefore KPNA2 is unable to transport STAT1 into the nucleus, therby blocking the expression of STAT1-activated genes that establish an antiviral state (PMID:17596301). Sources: Literature, Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.205 | CCR5 | Sarah Leigh edited their review of gene: CCR5: Added comment: Preprint https://doi.org/10.1101/2020.05.02.20084673 reports 10 terminally-ill, critical COVID-19 patients with profound elevation of plasma IL-6 and CCL5 (RANTES), decreased CD8+ T cell levels, and SARS-CoV-2 plasma viremia. Treatment with CCR5 blocking antibody leronlimab, results in complete CCR5 receptor occupancy on macrophage and T cells, rapid reduction of plasma IL-6, restoration of the CD4/CD8 ratio, and a significant decrease in SARS-CoV-2 plasma viremia. From single-cell RNA-sequencing, this effect appears to be a result of reduced transcriptomic myeloid cell clusters expressing IL-6 and interferon-related genes.; Changed publications: https://doi.org/10.1101/2020.05.02.20084673 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.204 | IL6 | Sarah Leigh edited their review of gene: IL6: Added comment: Preprint https://doi.org/10.1101/2020.05.02.20084673 reports 10 terminally-ill, critical COVID-19 patients with profound elevation of plasma IL-6 and CCL5 (RANTES), decreased CD8+ T cell levels, and SARS-CoV-2 plasma viremia. Treatment with CCR5 blocking antibody leronlimab, results in complete CCR5 receptor occupancy on macrophage and T cells, rapid reduction of plasma IL-6, restoration of the CD4/CD8 ratio, and a significant decrease in SARS-CoV-2 plasma viremia. From single-cell RNA-sequencing, this effect appears to be a result of reduced transcriptomic myeloid cell clusters expressing IL-6 and interferon-related genes.; Changed publications: https://doi.org/10.1101/2020.05.02.20084673 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.204 | HAVCR2 | Sarah Leigh Added comment: Comment on list classification: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. At least 3 variants reported in at least 20 families. PMID 30374066 haplotype analysis identified at least 12 distinct chromosome backgrounds within 7 families homozygous for rs184868814, suggestive of recurrant occurrence. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.203 | IL2RB | Sarah Leigh Added comment: Comment on list classification: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. At least 4 variants reported in at least 5 unrelated families (two families with the same variant had shared ethnic heritage PMID 31040185). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.202 | IL6R | Sarah Leigh Added comment: Comment on list classification: Associated with relevant phenotype in OMIM, but not associated with phenotype in Gen2Phen. At least 4 variants reported in at least 3 unrelated cases, together with supportive functional studies. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.194 | CD4 | Ivone Leong Phenotypes for gene: CD4 were changed from Selective CD4 cell deficiency to Selective CD4 cell deficiency; OKT4 epitope deficiency, 613949; Absence of CD4+ T cells; exuberant, relapsing, treatment-refractory warts | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.190 | CDC42 |
Ivone Leong gene: CDC42 was added gene: CDC42 was added to Viral susceptibility. Sources: Expert Review Mode of inheritance for gene: CDC42 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: CDC42 were set to 31601675; 32303876; 32231661; 31271789 Phenotypes for gene: CDC42 were set to Neonatal-onset cytopaenia with dyshaematopoiesis; autoinflammation; rash; HLH Review for gene: CDC42 was set to GREEN Added comment: "PMID 31601675: four unrelated individuals with superimposable features, including neonatal-onset cytopenia with dyshematopoiesis, autoinflammation, rash, and HLH. All shared the same de novo CDC42 variant (Chr1:22417990C>T, p.R186C). Another pair of sibs reported in PMID 32303876 with infantile myelofibrosis and myeloproliferation and same variant (parental mosaicism). Yet another individual in PMID 32231661 with different de novo variant, p.Cys81Tyr who in addition developed haematological malignancy and also had syndromic features, including ID. Note other missense variants in this gene cause Takenouchi-Kosaki syndrome, MIM# 616737 Sources: Literature Zornitza Stark (Australian Genomics), 30 Apr 2020" - review copied from Primary immunodeficiency (Version 2.153) "Comment on list classification: Gene added by Zornitza Stark (Australian Genomics) with a suggested Green rating based on evidence she has provided. As well as the listed cases there is another paper (PMID: 31271789) describing 4 unrelated cases with de novo variants in CDC42 (p.C188Y, p.R186C, p.*192C*24). The patients predominantly had systemic autoinflammatory disease and development of HLH. Therefore there is enough evidence to rate this gene as Green. Ivone Leong (Genomics England Curator), 5 May 2020" - review copied from Primary immunodeficiency (Version 2.153) Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.178 | ABO | Catherine Snow Added comment: Comment on list classification: Identified by expert review. Two preprints and publication relating to ABO and Sars-COV. https://doi.org/10.1101/2020.04.08.20058073 authors found that COVID-19 positive vs negative test results were increased in blood groups A and decreased in blood groups O, consistent with previous results from Wuhan and Shenzhen (https://doi.org/10.1101/2020.03.11.20031096) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.171 | RELA | Sophie Hambleton reviewed gene: RELA: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: chronic mucocutaneous ulceration, autoimmune lymphoporliferative syndrome; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.171 | REL | Sophie Hambleton reviewed gene: REL: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: combined immunodeficiency; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.171 | POLD1 | Sophie Hambleton changed review comment from: IUIS gene. Biallelic missense variant p.R1060C, that impairs association between POLD1 and POLD2, was associated with combined immunodeficiency in 3 affected members of one kindred. Allelic AD disorders cause alternative phenotypes; to: IUIS gene. Biallelic missense variant p.R1060C, that impairs association between POLD1 and POLD2, was associated with combined immunodeficiency in 3 affected members of one kindred. An unrelated case of combined immunodeficiency reported elsewhere (PMID 31449058) had 3 rare missense variants. Allelic AD disorders cause alternative phenotypes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.163 | TMPRSS2 | Rebecca Foulger commented on gene: TMPRSS2: Preprint https://www.medrxiv.org/content/10.1101/2020.04.22.20074963v1 Lopera et al shows a LACK of association between genetic variants at ACE2 and TMPRSS2 and human quantitative phenotypes. The authors recognise that the SARS-CoV-2 virus uses ACE2 for cell invasion, and the serine protease TMPRSS2 for S protein priming and therefore they investigated whether genetic variation in these two genes modulates an individual's genetic predisposition to infection and virus clearance. They examined 178 quantitative phenotypes in relation to 1,273 genetic variants located in or near ACE2 and TMPRSS2: none reached the threshold for significance though these variants may play a role in diseases such as hypertension and chronic inflammation that are often observed in the more severe COVID-19 cases. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.163 | ACE2 | Rebecca Foulger commented on gene: ACE2: Preprint https://www.medrxiv.org/content/10.1101/2020.04.22.20074963v1 Lopera et al shows a LACK of association between genetic variants at ACE2 and TMPRSS2 and human quantitative phenotypes. The authors recognise that the SARS-CoV-2 virus uses ACE2 for cell invasion, and the serine protease TMPRSS2 for S protein priming and therefore they investigated whether genetic variation in these two genes modulates an individual's genetic predisposition to infection and virus clearance. They examined 178 quantitative phenotypes in relation to 1,273 genetic variants located in or near ACE2 and TMPRSS2: none reached the threshold for significance though these variants may play a role in diseases such as hypertension and chronic inflammation that are often observed in the more severe COVID-19 cases. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.160 | ABO |
Owen Siggs gene: ABO was added gene: ABO was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: ABO was set to Other Publications for gene: ABO were set to 15784866 Review for gene: ABO was set to AMBER Added comment: Preliminary suggestion from preprints (https://www.medrxiv.org/content/10.1101/2020.03.11.20031096v2 & https://www.preprints.org/manuscript/202003.0356/v1) that ABO blood group may influence susceptibility to SARS-CoV-2 infection. Other preliminary evidence that ABO blood group may also influence susceptibility to SARS-CoV infection (PMID: 15784866). Both yet to be replicated, but suggest individuals of blood group O to be at lower risk of infection. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.160 | TLR3 |
Abdelazeem Elhabyan changed review comment from: These studies demonstrate the deleterious effect of some TLR3 mutations and predisposition to Herpes simplex encephalitis in 4 separate studies on unrelated patients from different countries. TLR3 mutations in 3 children were associated with severe influenza pneumonitis. Finally, 2 other studies evaluate the protective effect of a common polymorphism of TLR3 against HIV infection in repetitively exposed individuals. Accordingly, we might find protective or deleterious effects in COVID19 patients due to different mutations of TLR3. TLR3 is a receptor for dsRNA (intermediate in the replication of many viruses including HSV) which induces IFN response to prevent the cytopathic effects of different viruses. A heterozygous dominant-negative mutation of TLR3 was discovered in 2 unrelated children with HSE. TLR3 mutant fibroblasts from the 2 patients were infected by HSV-1 and vesicular stomatitis virus(VSV).IFNB and IFNL production were impaired in those cells, viral replication was higher and cell survival was lower in the 2 patients' cells when compared with the controls. Blood leukocyte response normally with to poly (I:C) which explains why the disease is not disseminated and also explains the redundant role of TLR3 in blood cells(13). Similar findings were reported in a polish child in 2011, however, the patient here was compound heterozygous for a missense mutation leading to autosomal recessive inheritance of TLR3 deficiency(14). Treatment with IFN alpha and beta canceled the effect of the dominant-negative mutation increasing the causality relationship between TLR3 mutants and viral immune response(13). Relatives of the 2 patients with the same mutation did not show decreased interferon response nor they showed HSE as a complication of HSV which means that this mutation does not have full penetrance(13). In another study, 110 patients with HSE were sequenced (exons of TLR3) to establish a new association of TLR3 mutations and HSE. The study reported 5 novel variants other than those previously described in the literature. 2 of them were not pathogenically demonstrated by in vitro studies while 3 of them were pathogenic with similar findings to those described above. Additionally, they found 3 patients with the same mutations previously described in the literature so the total of patients with deleterious TLR3 mutations would be 6 out of 110. 4 of those 6 patients(66%) with TLR6 mutations had a relapse In contrast to 12 out of 120(total cohort) (10%)(15). In a recent study done on 16 patients with adult-onset HSE using whole-exome sequencing(WES), 1 patient was discovered to have TLR3 deficiency, while 8 other patients had mutations in other genes in the TLR3 pathway(2 patients with a mutation in IRF3, 2 patients with mutations in STAT1, 2 patients with mutations in TRIF, 1 patient with a mutation in TYK2,1 patients with a mutation in MAVS, and finally 1 patient with a mutation in TBK1)(16) A common polymorphism in TLR3(rs3775291) was linked to increased resistance to HIV1 infection by the genotyping study of Spanish and Italian cohorts with a P value of .023 and .029 respectively. The study compared HIV exposed seronegative cohort(IV drug abuse and sexually active ) with controls. Repetitive HIV exposure in the cohort was evidenced by HCV seropositivity. In vitro infection of PBMCs with HIV showed increased resistance in cells carrying the allele and also TLR3 stimulation by TLR3 agonists showed an increased level of expression of CD69, IL-6, and CCL3(17). A similar study was conducted on the Caucasian population showing the protective effect of the allele against HIV infection(18). Autosomal recessive IRF7 and IRF9 deficiencies impair type I and III IFN immunity and underlie severe influenza pneumonitis. We report three unrelated children with influenza A virus (IAV) infection manifesting as acute respiratory distress syndrome (IAV-ARDS), heterozygous for rare TLR3 variants (P554S in two patients and P680L in the third) causing autosomal dominant (AD) TLR3 deficiency. AD TLR3 deficiency can underlie herpes simplex virus-1 (HSV-1) encephalitis (HSE) by impairing cortical neuron-intrinsic type I IFN immunity to HSV-1. TLR3-mutated leukocytes produce normal levels of IFNs in response to IAV. In contrast, TLR3-mutated fibroblasts produce lower levels of IFN-β and -λ, and display enhanced viral susceptibility, upon IAV infection. Moreover, the patients’ iPSC-derived pulmonary epithelial cells (PECs) are susceptible to IAV. Treatment with IFN-α2b or IFN-λ1 rescues this phenotype. AD TLR3 deficiency may thus underlie IAV-ARDS by impairing TLR3-dependent, type I, and/or III IFN–mediated, PEC-intrinsic immunity. Its clinical penetrance is incomplete for both IAV-ARDS and HSE, consistent with their typically sporadic nature(PMID: 31217193 ) 13.Zhang SY, Jouanguy E, Ugolini S, et al. TLR3 deficiency in patients with herpes simplex encephalitis. Science. 2007;317(5844):1522–1527. doi:10.1126/science.1139522 14.Guo Y, Audry M, Ciancanelli M, et al. Herpes simplex virus encephalitis in a patient with complete TLR3 deficiency: TLR3 is otherwise redundant in protective immunity. J Exp Med. 2011;208(10):2083–2098. doi:10.1084/jem.20101568 15.Lim HK, Seppänen M, Hautala T, et al. TLR3 deficiency in herpes simplex encephalitis: high allelic heterogeneity and recurrence risk. Neurology. 2014;83(21):1888–1897. doi:10.1212/WNL.0000000000000999 16.Mørk N, Kofod-Olsen E, Sørensen KB, et al. Mutations in the TLR3 signaling pathway and beyond in adult patients with herpes simplex encephalitis. Genes Immun. 2015;16(8):552–566. doi:10.1038/gene.2015.46 17.Sironi M, Biasin M, Cagliani R, et al. A common polymorphism in TLR3 confers natural resistance to HIV-1 infection. J Immunol. 2012;188(2):818–823. doi:10.4049/jimmunol.1102179 18.Huik K, Avi R, Pauskar M, et al. Association between TLR3 rs3775291 and resistance to HIV among highly exposed Caucasian intravenous drug users. Infect Genet Evol. 2013;20:78–82. doi:10.1016/j.meegid.2013.08.008 19.Lim HK, Huang SXL, Chen J, et al. Severe influenza pneumonitis in children with inherited TLR3 deficiency. J Exp Med. 2019;216(9):2038–2056. doi:10.1084/jem.20181621; to: These studies demonstrate the deleterious effect of some TLR3 mutations and predisposition to Herpes simplex encephalitis in 4 separate studies on unrelated patients from different countries. TLR3 mutations in 3 children were associated with severe influenza pneumonitis. Finally, 2 other studies evaluate the protective effect of a common polymorphism of TLR3 against HIV infection in repetitively exposed individuals. Accordingly, we might find protective or deleterious effects in COVID19 patients due to different mutations of TLR3. TLR3 is a receptor for dsRNA (intermediate in the replication of many viruses including HSV) which induces IFN response to prevent the cytopathic effects of different viruses. A heterozygous dominant-negative mutation of TLR3 was discovered in 2 unrelated children with HSE. TLR3 mutant fibroblasts from the 2 patients were infected by HSV-1 and vesicular stomatitis virus(VSV).IFNB and IFNL production were impaired in those cells, viral replication was higher and cell survival was lower in the 2 patients' cells when compared with the controls. Blood leukocyte response normally with to poly (I:C) which explains why the disease is not disseminated and also explains the redundant role of TLR3 in blood cells(13). Similar findings were reported in a polish child in 2011, however, the patient here was compound heterozygous for a missense mutation leading to autosomal recessive inheritance of TLR3 deficiency(14). Treatment with IFN alpha and beta canceled the effect of the dominant-negative mutation increasing the causality relationship between TLR3 mutants and viral immune response(13). Relatives of the 2 patients with the same mutation did not show decreased interferon response nor they showed HSE as a complication of HSV which means that this mutation does not have full penetrance(13). In another study, 110 patients with HSE were sequenced (exons of TLR3) to establish a new association of TLR3 mutations and HSE. The study reported 5 novel variants other than those previously described in the literature. 2 of them were not pathogenically demonstrated by in vitro studies while 3 of them were pathogenic with similar findings to those described above. Additionally, they found 3 patients with the same mutations previously described in the literature so the total of patients with deleterious TLR3 mutations would be 6 out of 110. 4 of those 6 patients(66%) with TLR6 mutations had a relapse In contrast to 12 out of 120(total cohort) (10%)(15). In a recent study done on 16 patients with adult-onset HSE using whole-exome sequencing(WES), 1 patient was discovered to have TLR3 deficiency, while 8 other patients had mutations in other genes in the TLR3 pathway(2 patients with a mutation in IRF3, 2 patients with mutations in STAT1, 2 patients with mutations in TRIF, 1 patient with a mutation in TYK2,1 patients with a mutation in MAVS, and finally 1 patient with a mutation in TBK1)(16) A common polymorphism in TLR3(rs3775291) was linked to increased resistance to HIV1 infection by the genotyping study of Spanish and Italian cohorts with a P value of .023 and .029 respectively. The study compared HIV exposed seronegative cohort(IV drug abuse and sexually active ) with controls. Repetitive HIV exposure in the cohort was evidenced by HCV seropositivity. In vitro infection of PBMCs with HIV showed increased resistance in cells carrying the allele and also TLR3 stimulation by TLR3 agonists showed an increased level of expression of CD69, IL-6, and CCL3(17). A similar study was conducted on the Caucasian population showing the protective effect of the allele against HIV infection(18). Autosomal recessive IRF7 and IRF9 deficiencies impair type I and III IFN immunity and underlie severe influenza pneumonitis. We report three unrelated children with influenza A virus (IAV) infection manifesting as acute respiratory distress syndrome (IAV-ARDS), heterozygous for rare TLR3 variants (P554S in two patients and P680L in the third) causing autosomal dominant (AD) TLR3 deficiency. AD TLR3 deficiency can underlie herpes simplex virus-1 (HSV-1) encephalitis (HSE) by impairing cortical neuron-intrinsic type I IFN immunity to HSV-1. TLR3-mutated leukocytes produce normal levels of IFNs in response to IAV. In contrast, TLR3-mutated fibroblasts produce lower levels of IFN-β and -λ, and display enhanced viral susceptibility, upon IAV infection. Moreover, the patients’ iPSC-derived pulmonary epithelial cells (PECs) are susceptible to IAV. Treatment with IFN-α2b or IFN-λ1 rescues this phenotype. AD TLR3 deficiency may thus underlie IAV-ARDS by impairing TLR3-dependent, type I, and/or III IFN–mediated, PEC-intrinsic immunity. Its clinical penetrance is incomplete for both IAV-ARDS and HSE, consistent with their typically sporadic nature(PMID: 31217193 ) 13.Zhang SY, Jouanguy E, Ugolini S, et al. TLR3 deficiency in patients with herpes simplex encephalitis. Science. 2007;317(5844):1522–1527. doi:10.1126/science.1139522 14.Guo Y, Audry M, Ciancanelli M, et al. Herpes simplex virus encephalitis in a patient with complete TLR3 deficiency: TLR3 is otherwise redundant in protective immunity. J Exp Med. 2011;208(10):2083–2098. doi:10.1084/jem.20101568 15.Lim HK, Seppänen M, Hautala T, et al. TLR3 deficiency in herpes simplex encephalitis: high allelic heterogeneity and recurrence risk. Neurology. 2014;83(21):1888–1897. doi:10.1212/WNL.0000000000000999 16.Mørk N, Kofod-Olsen E, Sørensen KB, et al. Mutations in the TLR3 signaling pathway and beyond in adult patients with herpes simplex encephalitis. Genes Immun. 2015;16(8):552–566. doi:10.1038/gene.2015.46 17.Sironi M, Biasin M, Cagliani R, et al. A common polymorphism in TLR3 confers natural resistance to HIV-1 infection. J Immunol. 2012;188(2):818–823. doi:10.4049/jimmunol.1102179 18.Huik K, Avi R, Pauskar M, et al. Association between TLR3 rs3775291 and resistance to HIV among highly exposed Caucasian intravenous drug users. Infect Genet Evol. 2013;20:78–82. doi:10.1016/j.meegid.2013.08.008 19.Lim HK, Huang SXL, Chen J, et al. Severe influenza pneumonitis in children with inherited TLR3 deficiency. J Exp Med. 2019;216(9):2038–2056. doi:10.1084/jem.20181621 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.155 | CCL11 | Sarah Leigh Added comment: Comment on list classification: A cytokine (inflammatory biomarker), that is released in response to viral infections. Increased levels of CCL11 amongst other cytokines, is associated with immunity to West Nile virus (PMID 30915442). A haplotype that included c.-1385G>A was associated with resistance to HIV-1 infection (PMID 14571188). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.145 | ACE2 | Rebecca Foulger commented on gene: ACE2: ACE2 gene present in the UniProt COVID portal (https://covid-19.uniprot.org/ 6-April-2020) which provides the latest available pre-release UniProtKB data for the SARS-CoV-2 coronavirus and other entries relating to the COVID-19 outbreak. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.140 | DMBT1 |
Eleanor Williams gene: DMBT1 was added gene: DMBT1 was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: DMBT1 was set to Unknown Review for gene: DMBT1 was set to RED Added comment: Preprint - https://www.biorxiv.org/content/10.1101/2020.04.16.045617v1 - Han et al Found using single cell transcriptomics that DMBT1 (a viral binding scavenger) was highly expressed in alveolar type II cells relative to other lung epithelial subsets and its expression positively correlated with ACE2. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.137 | ALPI |
Eleanor Williams changed review comment from: Not associated with a phenotype in OMIM or Gene2Phenotype. PMID: 29567797 - Parlato et al 2018- report ALPI mutations in two unrelated patients with severe intestinal inflammation and autoimmunity. WES was used. Patient 1 - non‐consanguineous parents. At 2 years old was diagnosed with coeliac disease from HLA-typing. At age 3 had recurrent abdominal pain, rectal bleeding and severe diarrhoea. Patient 2 - non‐consanguineous parents of Jewish Ashkenazi origin. Age 15 he was diagnosed with ileocolonic Crohn's disease. Compound heterozygous mutations in the ALPI gene were found in both patients. Three variants result in the substitution of residues highly conserved across species (A97T, A350V and A360) and one variant (Q439X) introducing a premature stop codon. Functional studies in HEK293T cells showed that all ALPI mutations were loss of function. ALPI expression was reduced in patients’ biopsies.; to: Not associated with a phenotype in OMIM or Gene2Phenotype. PMID: 29567797 - Parlato et al 2018- report ALPI mutations in two unrelated patients with severe intestinal inflammation and autoimmunity. WES was used. Patient 1 - non‐consanguineous parents. At 2 years old was diagnosed with coeliac disease from HLA-typing. At age 3 had recurrent abdominal pain, rectal bleeding and severe diarrhoea. Patient 2 - non‐consanguineous parents of Jewish Ashkenazi origin. Age 15 he was diagnosed with ileocolonic Crohn's disease. Compound heterozygous mutations in the ALPI gene were found in both patients. Three variants result in the substitution of residues highly conserved across species (A97T, A350V and A360) and one variant (Q439X) introducing a premature stop codon. Functional studies in HEK293T cells showed that all ALPI mutations were loss of function. ALPI expression was reduced in patients’ biopsies. Rated Amber by Zornitza Stark on the PID panel. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.108 | RECQL4 | Sarah Leigh Added comment: Comment on list classification: Associated with relevant phenotype in OMIM and as confirmed Gen2Phen gene. At least 5 variants reported in 3 unrelated cases in which immunodeficiecy was a feature (PMID 16630167; 21143835; 26064716). In addition RECQL4 variants have been implicated in Acrodermatitis Enteropathica caused by SLC39A4 (p.Gly512Trp)(PMID 30174688) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.103 | IL18BP | Ivone Leong reviewed gene: IL18BP: Rating: GREEN; Mode of pathogenicity: ; Publications: 32086639, 32048120; Phenotypes: Defects in intrinsic and innate immunity, inborn errors of immunity related to leukocytes, IL-18BP deficiency; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.103 | IRF4 | Ivone Leong reviewed gene: IRF4: Rating: GREEN; Mode of pathogenicity: ; Publications: 32086639, 32048120; Phenotypes: Defects in intrinsic and innate immunity, inborn errors of immunity related to leukocytes, IRF4 haploinsufficiency; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.102 | IL18BP |
Ivone Leong Source Expert Review Green was added to IL18BP. Source IUIS Classification December 2019 was added to IL18BP. Mode of inheritance for gene IL18BP was changed from MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Added phenotypes Defects in intrinsic and innate immunity; IL-18BP deficiency; inborn errors of immunity related to leukocytes for gene: IL18BP Publications for gene IL18BP were updated from PubMed: 31213488 to 32086639; 32048120; PubMed: 31213488 Rating Changed from No List (delete) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.102 | IRF4 |
Ivone Leong gene: IRF4 was added gene: IRF4 was added to Viral susceptibility. Sources: Expert Review Green,IUIS Classification December 2019 Mode of inheritance for gene: IRF4 was set to Phenotypes for gene: IRF4 were set to Defects in intrinsic and innate immunity; IRF4 haploinsufficiency; inborn errors of immunity related to leukocytes |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.89 | CCL5 | Rebecca Foulger commented on gene: CCL5: PMID:31874580 (Sheng et al. 2019) study suggests that the CCL5 rs2107538 polymorphism was correlated with TB (infectious disease caused by Mycobacterium tuberculosis) susceptibility in Caucasians. The rs2107538 polymorphism is suggested to affect CCL5 expression. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.81 | HLA-DRB1 |
Abdelazeem Elhabyan gene: HLA-DRB1 was added gene: HLA-DRB1 was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: HLA-DRB1 was set to Unknown Publications for gene: HLA-DRB1 were set to PMID: 19445991,26456283,19597844,10823757, Penetrance for gene: HLA-DRB1 were set to unknown Mode of pathogenicity for gene: HLA-DRB1 was set to Other Review for gene: HLA-DRB1 was set to GREEN Added comment: Association of human leukocyte antigen class II alleles with severe acute respiratory syndrome in the Vietnamese population PMID: 19445991, HLA-DRB1*12 was more frequently shown in SARS patients than in controls (corrected p = 0.042). HLA-DRB1*1202, the predominant allele in the Vietnamese population showed the strongest association with SARS in a dominant model (corrected p = 0.0065 and 0.0052, depending on the controls to be compared). Our results and accumulated data on HLA in the Asian populations would help in the understanding of associations with emerging infectious diseases. Amino Acid Variation in HLA Class II Proteins Is a Major Determinant of Humoral Response to Common Viruses PMID: 26456283 The magnitude of the human antibody response to viral antigens is highly variable. To explore the human genetic contribution to this variability, we performed genome-wide association studies of the immunoglobulin G response to 14 pathogenic viruses in 2,363 immunocompetent adults. Significant associations were observed in the major histocompatibility complex region on chromosome 6 for influenza A virus, Epstein-Barr virus, JC polyomavirus, and Merkel cell polyomavirus. Using local imputation and fine mapping, we identified specific amino acid residues in human leucocyte antigen (HLA) class II proteins as the most probable causal variants underlying these association signals. Common HLA-DRβ1 haplotypes showed virus-specific patterns of humoral-response regulation Clear and Independent Associations of Several HLA-DRB1 Alleles With Differential Antibody Responses to Hepatitis B Vaccination in Youth PMID: 19597844 To confirm and refine associations of human leukocyte antigen (HLA) genotypes with variable antibody (Ab) responses to hepatitis B vaccination, we have analyzed 255 HIV-1 seropositive (HIV(+)) youth and 80 HIV-1 seronegatives (HIV(-)) enrolled into prospective studies. In univariate analyses that focused on HLA-DRB1, -DQA1, and -DQB1 alleles and haplotypes, the DRB1*03 allele group and DRB1*0701 were negatively associated with the responder phenotype (serum Ab concentration > or = 10 mIU/mL) (P = 0.026 and 0.043, respectively). Collectively, DRB1*03 and DRB1*0701 were found in 42 (53.8%) out of 78 non-responders (serum Ab <10 mIU/mL), 65 (40.6%) out of 160 medium responders (serum Ab 10-1,000 mIU/mL), and 27 (27.8%) out of 97 high responders (serum Ab >1,000 mIU/mL) (P < 0.001 for trend). Meanwhile, DRB1*08 was positively associated with the responder phenotype (P = 0.010), mostly due to DRB1*0804 (P = 0.008). Influence of HLA Supertypes on Susceptibility and Resistance to Human Immunodeficiency Virus Type 1 Infection PMID: 10823757 To determine whether HLA polymorphism influences HIV-1 susceptibility, a longitudinal cohort of highly HIV-1-exposed female sex workers based in Nairobi, Kenya, was prospectively analyzed. Decreased HIV-1 infection risk was strongly associated with possession of a cluster of closely related HLA alleles (A2/6802 supertype; incidence rate ratio [IRR], 0.45; 95% confidence interval [CI], 0.27-0.72; P=.0003). The alleles in this supertype are known in some cases to present the same peptide epitopes for T cell recognition. In addition, resistance to HIV-1 infection was independently associated with HLA DRB1*01 (IRR, 0.22; 95% CI, 0.06-0.60; P=.0003), which suggests that anti-HIV-1 class II restricted CD4 effector mechanisms may play an important role in protecting against viral challenge Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.81 | POLR3A |
Abdelazeem Elhabyan changed review comment from: This gene is responsible for A subunit of Polymerase which sense DNA in viral infection eg Varicella Zoster. SARS-CoV-2 is an RNA virus. Inborn errors in RNA polymerase III underlie severe varicella zoster virus infections(PMID: 28783042) We report 4 cases of acute severe VZV infection affecting the central nervous system or the lungs in unrelated, otherwise healthy children who are heterozygous for rare missense mutations in POLR3A (one patient), POLR3C (one patient), or both (two patients). POLR3A and POLR3C encode subunits of RNA polymerase III. Leukocytes from all 4 patients tested exhibited poor IFN induction in response to synthetic or VZV-derived DNA. Moreover, leukocytes from 3 of the patients displayed defective IFN production upon VZV infection and reduced control of VZV replication. These phenotypes were rescued by transduction with relevant WT alleles. This work demonstrates that monogenic or digenic POLR3A and POLR3C deficiencies confer increased susceptibility to severe VZV disease in otherwise healthy children, providing evidence for an essential role of a DNA sensor in human immunity Different classes of PRRs are involved in recognition of virus infections, including membrane-associated TLRs; cytosolic retinoic acid–inducible gene 1–like (RIG-I–like) receptors, which sense RNA; and DNA sensors (24). Each of these classes of PRRs stimulates production of IFNs, which exhibit antiviral activity through their ability to induce IFN-stimulated genes (ISGs). With respect to DNA sensors, TLR9 detects unmethylated DNA, RNA polymerase III (POL III) recognizes AT-rich DNA, while gamma-interferon-inducible protein 16 (IFI16) and cyclic GMP-AMP synthase (cGAS) sense double-stranded DNA in a sequence-independent manner (25–29). Mutations in RNA Polymerase III genes and defective DNA sensing in adults with varicella-zoster virus CNS infection PMID: 29728610 Recently, deficiency in the cytosolic DNA sensor RNA Polymerase III was described in children with severe primary varicella-zoster virus (VZV) infection in the CNS and lungs. In the present study we examined adult patients with VZV CNS infection caused by viral reactivation. By whole exome sequencing we identified mutations in POL III genes in two of eight patients. These mutations were located in the coding regions of the subunits POLR3A and POLR3E. In functional assays, we found impaired expression of antiviral and inflammatory cytokines in response to the POL III agonist Poly(dA:dT) as well as increased viral replication in patient cells compared to controls. Altogether, this study provides significant extension on the current knowledge on susceptibility to VZV infection by demonstrating mutations in POL III genes associated with impaired immunological sensing of AT-rich DNA in adult patients with VZV CNS infection.; to: This gene is responsible for A subunit of Polymerase which senses DNA viruses especially AT-rich regions eg Varicella Zoster. SARS-CoV-2 is an RNA virus. Inborn errors in RNA polymerase III underlie severe varicella zoster virus infections(PMID: 28783042) We report 4 cases of acute severe VZV infection affecting the central nervous system or the lungs in unrelated, otherwise healthy children who are heterozygous for rare missense mutations in POLR3A (one patient), POLR3C (one patient), or both (two patients). POLR3A and POLR3C encode subunits of RNA polymerase III. Leukocytes from all 4 patients tested exhibited poor IFN induction in response to synthetic or VZV-derived DNA. Moreover, leukocytes from 3 of the patients displayed defective IFN production upon VZV infection and reduced control of VZV replication. These phenotypes were rescued by transduction with relevant WT alleles. This work demonstrates that monogenic or digenic POLR3A and POLR3C deficiencies confer increased susceptibility to severe VZV disease in otherwise healthy children, providing evidence for an essential role of a DNA sensor in human immunity Different classes of PRRs are involved in recognition of virus infections, including membrane-associated TLRs; cytosolic retinoic acid–inducible gene 1–like (RIG-I–like) receptors, which sense RNA; and DNA sensors (24). Each of these classes of PRRs stimulates production of IFNs, which exhibit antiviral activity through their ability to induce IFN-stimulated genes (ISGs). With respect to DNA sensors, TLR9 detects unmethylated DNA, RNA polymerase III (POL III) recognizes AT-rich DNA, while gamma-interferon-inducible protein 16 (IFI16) and cyclic GMP-AMP synthase (cGAS) sense double-stranded DNA in a sequence-independent manner (25–29). Mutations in RNA Polymerase III genes and defective DNA sensing in adults with varicella-zoster virus CNS infection PMID: 29728610 Recently, deficiency in the cytosolic DNA sensor RNA Polymerase III was described in children with severe primary varicella-zoster virus (VZV) infection in the CNS and lungs. In the present study we examined adult patients with VZV CNS infection caused by viral reactivation. By whole exome sequencing we identified mutations in POL III genes in two of eight patients. These mutations were located in the coding regions of the subunits POLR3A and POLR3E. In functional assays, we found impaired expression of antiviral and inflammatory cytokines in response to the POL III agonist Poly(dA:dT) as well as increased viral replication in patient cells compared to controls. Altogether, this study provides significant extension on the current knowledge on susceptibility to VZV infection by demonstrating mutations in POL III genes associated with impaired immunological sensing of AT-rich DNA in adult patients with VZV CNS infection. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.75 | DBR1 |
Abdelazeem Elhabyan changed review comment from: I found that it has been promoted from the Australling susceptibility to viral infections on this link https://panelapp.agha.umccr.org/panels/237/gene/DBR1/ This is based on this notion : Seven individuals from three unrelated families with viral brainstem encephalitis and bi-allelic hypomorphic variants. When I reviewed the paper, I found a notion of influenza viral encephalitis among other viruses(eg HSV-1) and a suggestion that this predisposition to the disease is due to involvement of DBR1 in intrinsic resistance of brainstem cells to those viruses via the enzyme encoded by DBR1.; to: I found that it has been promoted from the Australling susceptibility to viral infections on this link https://panelapp.agha.umccr.org/panels/237/gene/DBR1/ This is based on this notion in this paper : https://pubmed.ncbi.nlm.nih.gov/29474921/ Seven individuals from three unrelated families with viral brainstem encephalitis and bi-allelic hypomorphic variants. When I reviewed the paper, I found a notion of influenza viral encephalitis among other viruses(eg HSV-1) and a suggestion that this predisposition to the disease is due to the involvement of DBR1 in intrinsic resistance of brainstem cells to those viruses via the enzyme encoded by DBR1. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.75 | DBR1 |
Abdelazeem Elhabyan commented on gene: DBR1: I found that it has been promoted from the Australling susceptibility to viral infections on this link https://panelapp.agha.umccr.org/panels/237/gene/DBR1/ This is based on this notion : Seven individuals from three unrelated families with viral brainstem encephalitis and bi-allelic hypomorphic variants. When I reviewed the paper, I found a notion of influenza viral encephalitis among other viruses(eg HSV-1) and a suggestion that this predisposition to the disease is due to involvement of DBR1 in intrinsic resistance of brainstem cells to those viruses via the enzyme encoded by DBR1. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.60 | MPO |
Sarah Leigh Added comment: Comment on list classification: PMID 3208230 outlines the role of neutrophil extracellular traps (NETs) in the control of some pathogens including viruses, by virus capture and neutralization. In vivo treatment of the mice with DNase resulted in the enhanced susceptibility of IFNAR-/- mice to the CHIKV virus. Furthermore, the levels of MPO-DNA complex in acutely CHIKV-infected patients, were correlated with the levels of NETs and the viral load in the blood, suggesting that NETs are also released in natural human infection cases. Therefore, variants that result in myeloperoxidase deficiency, may well contribute to an increased susceptiblity to viral infection. At least 9 variants have been reported in Myeloperoxidase deficiency 254600 and these could well be contributing to increased viral susceptibily. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.54 | GAD1 | Catherine Snow Added comment: Comment on list classification: GAD1 has no relationship to virus susceptibility. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.52 | IFNAR1 | Sarah Leigh Added comment: Comment on list classification: Not associated with phenotype in OMIM or in Gen2Phen. However, the publications listed below give evidence that the three LOF variants in two unrelated cases are associated with an adverse reaction to attenuated virus vaccines, which are rescued by wt IFNAR1 protein in vitro. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.49 | IRF9 | Catherine Snow Added comment: Comment on list classification: Rating Green on this panel following feedback with Genomics England clinical team, as this is a research panel and IRF9 has two unrelated cases and an animal model. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | IRAK1 |
Ellen McDonagh Source Expert Review Green was added to IRAK1. Added phenotypes Bacterial infections, X-linked MECP2 deficiency-related syndrome due to a large de novo Xq28 chromosomal deletion encompassing both MECP2 and IRAK1; Defects in Intrinsic and Innate Immunity for gene: IRAK1 Rating Changed from Red List (low evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | RELA |
Ellen McDonagh Source Expert Review Green was added to RELA. Added phenotypes RelA haplosufficiency; Mucosal ulceration, impaired NFkB activation; Mucocutaneous ulceration, chronic, 618287; Immunodeficiencies affecting cellular and humoral immunity for gene: RELA Rating Changed from Red List (low evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | CFHR2 |
Ellen McDonagh Source Expert Review Green was added to CFHR2. Added phenotypes Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections for gene: CFHR2 Rating Changed from Red List (low evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | RELB |
Ellen McDonagh Source Expert Review Green was added to RELB. Added phenotypes Immunodeficiencies affecting cellular and humoral immunity; Recurrent infectionsImmunodeficiencies affecting cellular and humoral immunity; Recurrent infections; ?Immunodeficiency 53, 617585 for gene: RELB Rating Changed from Red List (low evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | REL |
Ellen McDonagh Source Expert Review Green was added to REL. Added phenotypes Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic infections; Immunodeficiencies affecting cellular and humoral immunity; c-Rel deficiency for gene: REL Rating Changed from Red List (low evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | RAC2 |
Ellen McDonagh Source Expert Review Green was added to RAC2. Added phenotypes Reticular dysgenesis; poststreptococcal glomerulonephritis; Congenital defects of phagocyte number or function; Neutrophil immunodeficiency syndrome; RAS-related C3 Bolutinum toxin substrate 2 deficiency (RAC2); T-B+ SCID; Neutrophil immunodeficiency syndrome 608203; Recurrent sinopulmonary infections, selective IgA defiency; urticaria; T-B- SCID; Poor wound healing, leukocytosis for gene: RAC2 Rating Changed from Amber List (moderate evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | CFHR4 |
Ellen McDonagh Source Expert Review Green was added to CFHR4. Added phenotypes Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections for gene: CFHR4 Rating Changed from Amber List (moderate evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | CFHR3 |
Ellen McDonagh Source Expert Review Green was added to CFHR3. Added phenotypes Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections for gene: CFHR3 Rating Changed from Amber List (moderate evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.40 | CFHR1 |
Ellen McDonagh Source Expert Review Green was added to CFHR1. Added phenotypes Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections for gene: CFHR1 Rating Changed from Amber List (moderate evidence) to Green List (high evidence) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | IRAK1 |
Ellen McDonagh gene: IRAK1 was added gene: IRAK1 was added to Viral susceptibility. Sources: Expert Review Red,IUIS Classification February 2018,IUIS Classification December 2019 Mode of inheritance for gene: IRAK1 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: IRAK1 were set to 32086639; 32048120; 28069966 Phenotypes for gene: IRAK1 were set to Bacterial infections, X-linked MECP2 deficiency-related syndrome due to a large de novo Xq28 chromosomal deletion encompassing both MECP2 and IRAK1; Defects in Intrinsic and Innate Immunity |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | RELA |
Ellen McDonagh gene: RELA was added gene: RELA was added to Viral susceptibility. Sources: IUIS Classification December 2019 Mode of inheritance for gene: RELA was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: RELA were set to 28600438; 32086639; 32048120; 29305315 Phenotypes for gene: RELA were set to RelA haplosufficiency; Mucosal ulceration, impaired NFkB activation; Mucocutaneous ulceration, chronic, 618287; Immunodeficiencies affecting cellular and humoral immunity |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | BACH2 |
Ellen McDonagh gene: BACH2 was added gene: BACH2 was added to Viral susceptibility. Sources: Expert Review Green,North West GLH,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: BACH2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: BACH2 were set to 27807919; 28530713; 27680876 Phenotypes for gene: BACH2 were set to Diseases of Immune Dysregulation; BACH2-related immunodeficiency and autoimmunity (BRIDA); hypogammaglobulinaemia; infantile onset enterocolitis; Lymphocytic colitis, sinopulmonary infections |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CFHR2 |
Ellen McDonagh gene: CFHR2 was added gene: CFHR2 was added to Viral susceptibility. Sources: Victorian Clinical Genetics Services,GRID V2.0,IUIS Classification December 2019,Expert Review Red,IUIS Classification February 2018 Mode of inheritance for gene: CFHR2 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CFHR2 were set to 32086639; 32048120 Phenotypes for gene: CFHR2 were set to Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | RAC2 |
Ellen McDonagh gene: RAC2 was added gene: RAC2 was added to Viral susceptibility. Sources: Combined B and T cell defect v1.12,ESID Registry 20171117,Victorian Clinical Genetics Services,Congenital neutropaenia v1.22,GRID V2.0,SCID v1.6,IUIS Classification February 2018,Expert Review Amber Mode of inheritance for gene: RAC2 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: RAC2 were set to 21167572; 30654050; 30723080; 31071452; 25512081; 10758162; 31382036; 10961859 Phenotypes for gene: RAC2 were set to Reticular dysgenesis; poststreptococcal glomerulonephritis; Congenital defects of phagocyte number or function; Neutrophil immunodeficiency syndrome; RAS-related C3 Bolutinum toxin substrate 2 deficiency (RAC2); T-B+ SCID; Neutrophil immunodeficiency syndrome 608203; Recurrent sinopulmonary infections, selective IgA defiency; urticaria; T-B- SCID; Poor wound healing, leukocytosis |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CFHR4 |
Ellen McDonagh gene: CFHR4 was added gene: CFHR4 was added to Viral susceptibility. Sources: Victorian Clinical Genetics Services,GRID V2.0,IUIS Classification December 2019,IUIS Classification February 2018,Expert Review Amber Mode of inheritance for gene: CFHR4 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CFHR4 were set to 32086639; 32048120 Phenotypes for gene: CFHR4 were set to Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CFHR3 |
Ellen McDonagh gene: CFHR3 was added gene: CFHR3 was added to Viral susceptibility. Sources: Victorian Clinical Genetics Services,GRID V2.0,IUIS Classification December 2019,IUIS Classification February 2018,Expert Review Amber Mode of inheritance for gene: CFHR3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CFHR3 were set to 32086639; 32048120 Phenotypes for gene: CFHR3 were set to Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CFHR1 |
Ellen McDonagh gene: CFHR1 was added gene: CFHR1 was added to Viral susceptibility. Sources: Victorian Clinical Genetics Services,GRID V2.0,IUIS Classification December 2019,IUIS Classification February 2018,Expert Review Amber Mode of inheritance for gene: CFHR1 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CFHR1 were set to 32086639; 32048120 Phenotypes for gene: CFHR1 were set to Complement Deficiencies; Age related macular degeneration; Atypical hemolytic uremic syndrome susceptibility; Older onset atypical hemolytic-uremic syndrome, disseminated neisserial infections |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | PARN |
Ellen McDonagh gene: PARN was added gene: PARN was added to Viral susceptibility. Sources: Expert Review Green,Victorian Clinical Genetics Services,North West GLH,GRID V2.0,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: PARN was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: PARN were set to 25848748; 26342108; 25893599 Phenotypes for gene: PARN were set to Pulmonary fibrosis and/or bone marrow failure,telomere-related, 4 616371; Dyskeratosis congenita, autosomal recessive 6 616353; Intrauterine growth retardation, microcephaly, nail dystrophy, sparse scalp hair and eyelashes, hyperpigmentation of skin, palmar hyperkeratosis, premalignant oral leukoplakia, pancytopenia, myelodysplasia, +/- recurrent infections. A severe phenotype with developmental delay and cerebellar hypoplasia known as Hoyeraal-Hreidarsson Syndrome (HHS) may occur in some DKC patients; Combined immunodeficiencies with associated or syndromic features |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | RELB |
Ellen McDonagh gene: RELB was added gene: RELB was added to Viral susceptibility. Sources: Combined B and T cell defect v1.12,Expert Review Red,IUIS Classification February 2018,IUIS Classification December 2019 Mode of inheritance for gene: RELB was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: RELB were set to 32086639; 32048120; 26385063 Phenotypes for gene: RELB were set to Immunodeficiencies affecting cellular and humoral immunity; Recurrent infectionsImmunodeficiencies affecting cellular and humoral immunity; Recurrent infections; ?Immunodeficiency 53, 617585 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | REL |
Ellen McDonagh gene: REL was added gene: REL was added to Viral susceptibility. Sources: IUIS Classification December 2019 Mode of inheritance for gene: REL was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: REL were set to 32086639; 31103457; 32048120 Phenotypes for gene: REL were set to Recurrent infections with bacteria, mycobacteria, salmonella and opportunistic infections; Immunodeficiencies affecting cellular and humoral immunity; c-Rel deficiency |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | IL21R |
Ellen McDonagh gene: IL21R was added gene: IL21R was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,Victorian Clinical Genetics Services,GRID V2.0,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: IL21R was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: IL21R were set to 23440042; 12700598 Phenotypes for gene: IL21R were set to Combined immunodeficiency; Atypical Severe Combined Immunodeficiency (Atypical SCID); Immunodeficiency 56, 615207; Immunodeficiencies affecting cellular and humoral immunity; Omenn syndrome; Immunodeficiency, primary, autosomal recessive, IL21R-related; IL-21R deficiency; Severe combined immunodeficiency (SCID); Recurrent infections, Pneumocystis jiroveci, Cryptosporidium infections and liver disease |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CFI |
Ellen McDonagh gene: CFI was added gene: CFI was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,Victorian Clinical Genetics Services,GRID V2.0,Inherited complement deficiency v0.11,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: CFI was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CFI were set to 18374984; 24142231; 22710145; 19065647; 8613545; 12562389; 27091480; 3897024; 21316765; 25988862 Phenotypes for gene: CFI were set to {Macular degeneration, age-related, 13, susceptibility to}, 615439; Complement factor I deficiency; Factor I deficiency; {Hemolytic uremic syndrome, atypical, susceptibility to, 3}, 612923; Infections, disseminated neisserial infections, atypical Hemolytic-uremic syndrome, preeclampsia; Complement Deficiencies; Immunodeficiency with factor I anomaly; C3b inactivator deficiency; Complement factor I deficiency, 610984 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CD70 |
Ellen McDonagh gene: CD70 was added gene: CD70 was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: CD70 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CD70 were set to 28011864; 28011863; 29434583 Phenotypes for gene: CD70 were set to Combined immunodeficiency; CD70-deficiency; Diseases of Immune Dysregulation; EBV-related malignancy; EBV susceptibility, Hodgkin lymphoma |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | CD59 |
Ellen McDonagh gene: CD59 was added gene: CD59 was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,Victorian Clinical Genetics Services,GRID V2.0,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: CD59 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CD59 were set to 1382994; 1699124; 23149847; 24382084; 25716358 Phenotypes for gene: CD59 were set to Primary CD59 deficiency; paroxysmal nocturnal haemoglobinuria; CD59 antigen P18-20 deficiency (CD59); Hemolytic anemia, polyneuropathy; Hemolytic anemia, CD59-mediated, with or without immune-mediated polyneuropathy, 612300; childhood relapsing immune-mediated polyneuropathy; Complement Deficiencies; chronic hemolysis; Membrane Attack Complex Inhibitor (CD59) deficiency |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.36 | ADAR |
Ellen McDonagh gene: ADAR was added gene: ADAR was added to Viral susceptibility. Sources: Expert Review Green,ESID Registry 20171117,North West GLH,Victorian Clinical Genetics Services,GRID V2.0,NHS GMS,London North GLH,IUIS Classification February 2018 Mode of inheritance for gene: ADAR was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ADAR were set to 25604658; 24183309; 23001123; 24262145; 27643693; 25769924 Phenotypes for gene: ADAR were set to Fever Syndromes and Related Diseases, Aicardi-Goutieres syndrome 6, 615010; Type 1 interferonopathies; Autoinflammatory Disorders; AGS6; Classical AGS, BSN, SP |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.34 | TMEM173 |
Ellen McDonagh commented on gene: TMEM173: Additional evidence added to the publication list, provided by Abdelazeem Elhabyan. Comments from Abdelazeem Elhabyan: GenBank - https://www.ncbi.nlm.nih.gov/gene?term=(human%5BOrganism%5D)%20AND%20TMEM173%5BGene%20Name%5D) This gene encodes a five transmembrane protein that functions as a major regulator of the innate immune response to viral and bacterial infections. The encoded protein is a pattern recognition receptor that detects cytosolic nucleic acids and transmits signals that activate type I interferon responses. Hypothesis: This gene is involved in interferon 1 pathway which is directly related to viral innate immune response. Upregulation may be associated with a protective effect or autoinflammatory response with aggravating effect. This is to be determined by clinical trials. Highest organ of expression is the lung in genbank (Pneumonia caused by corona) RPKM ,\mean is 37 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7069765/ Extracellular vesicles released by virally infected cells(HSV) that carry STING can induce protective effect against viral replication in neighbouring non infected cells https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6146713/ Virulent Poxviruses Inhibit DNA Sensing by Preventing STING Activation https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5923072/ The gene is involved in acute pancreatitis in mice https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112120/ |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.20 | ACE |
Ellen McDonagh gene: ACE was added gene: ACE was added to Viral susceptibility. Sources: Literature Mode of inheritance for gene: ACE was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: ACE were set to 15819995 Phenotypes for gene: ACE were set to Not associated with susceptibility to SARS-coronavirus infection and disease outcomes Added comment: PMID: A case-control study found no association with the I/D polymorphism in this gene and increased susceptibility to SARS-coronavirus infection nor with poor outcomes after SARS-coronavirus infection (140 genetically unrelated Chinese SARS cases and 326 healthy volunteers were recruited). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| COVID-19 research v0.9 |
Ellen McDonagh List of related panels changed from to Panel status changed from public to internal |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||