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Monogenic hearing loss v3.9 | CRLS1 |
Achchuthan Shanmugasundram gene: CRLS1 was added gene: CRLS1 was added to Monogenic hearing loss. Sources: Literature Mode of inheritance for gene: CRLS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CRLS1 were set to 5147173 Phenotypes for gene: CRLS1 were set to Combined oxidative phosphorylation deficiency 57, OMIM:620167 Review for gene: CRLS1 was set to GREEN Added comment: Three individuals from two unrelated families were identified with the same homozygous variant in CRLS1 (p.Ile109Asn). They presented with a mitochondrial disorder characterized by an evolving pattern of cardiomyopathy, encephalopathy, bilateral auditory neuropathy spectrum disorder, bull’s eye maculopathy, diabetes insipidus, autonomic instability and low complex IV activity in skeletal muscle. A fourth individual was identified with a compound heterozygous CRLS1 variant (p.Ala172Asp/ p.Leu217Phe) that presented with developmental regression beginning in late infancy, with acquired microcephaly, sensorineural hearing loss and impaired vision. Functional studies using patient-derived fibroblasts provide evidence that CRLS1 variants cause mitochondrial disease. Sources: Literature |
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Monogenic hearing loss v2.228 | DMXL2 | Eleanor Williams Phenotypes for gene: DMXL2 were changed from ?Deafness, autosomal dominant 71, 617605; Epileptic encephalopathy, early infantile, 81, 618663 to ?Deafness, autosomal dominant 71, OMIM:617605 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.207 | PRRX1 | Arina Puzriakova Phenotypes for gene: PRRX1 were changed from to Agnathia-otocephaly complex, OMIM:202650 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.198 | SARS |
Ivone Leong gene: SARS was added gene: SARS was added to Hearing loss. Sources: Expert Review Amber,Literature watchlist, new-gene-name tags were added to gene: SARS. Mode of inheritance for gene: SARS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SARS were set to 28236339; 34570399 Phenotypes for gene: SARS were set to ?Neurodevelopmental disorder with microcephaly, ataxia, and seizures, OMIM:617709 |
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Monogenic hearing loss v2.180 | SERAC1 | Arina Puzriakova Phenotypes for gene: SERAC1 were changed from 3-methylglutaconic aciduria with deafness, encephalopathy, and Leigh-like syndrome, 614739; MEGDEL syndrome; 3-MEthylGlutaconic aciduria, Dystonia-Deafness, Hepatopathy, Encephalopathy, Leigh-like syndrome; MEGDHEL syndrome to 3-methylglutaconic aciduria with deafness, encephalopathy, and Leigh-like syndrome, OMIM:614739 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.135 | COG4 |
Ivone Leong gene: COG4 was added gene: COG4 was added to Hearing loss. Sources: Literature for-review tags were added to gene: COG4. Mode of inheritance for gene: COG4 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: COG4 were set to 31949312; 30290151 Phenotypes for gene: COG4 were set to Saul-Wilson syndrome, OMIM:618150; microcephalic osteodysplastic dysplasia, Saul-Wilson type, MONDO:0019407 Mode of pathogenicity for gene: COG4 was set to Other Review for gene: COG4 was set to AMBER Added comment: This gene is associated with a phenotype in OMIM and Gene2Phenotype. This gene was added to the Cataracts panel by Zornitza Stark (Australian Genomics). "Saul-Wilson syndrome (AD): 14 patients reported with DD, skeletal changes, cataracts, and growth retardation (progeriod like) All have a recurrent de novo heterozygous missense variant (p.Gly516Arg). Please note bi-allelic variants cause CDG. Sources: Expert list Zornitza Stark (Australian Genomics), 7 Jul 2020" PMID: 30290151, many of the affected patients also have hearing loss and the authors suggest that the Saul-Wilson syndrome variant is gain of function. Therefore, this gene should be considered to be Green at the next review. Sources: Literature |
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Monogenic hearing loss v2.134 | MORC2 |
Arina Puzriakova Added comment: Comment on list classification: Though signs suggestive of neuropathy were observed in the cohort presented by Sacoto et al (PMID:32693025), these were not the predominant feature of the disease presentation or the primary indication for diagnostic testing. Furthermore, some cases with hearing loss would not be tested for other panels related to this phenotype (e.g. ID, severe microcephaly) as they did not exhibit the relevant features. Therefore, this gene should be promoted to Green at the next GMS panel update (added 'for-review' tag). |
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Monogenic hearing loss v2.133 | MORC2 | Arina Puzriakova Phenotypes for gene: MORC2 were changed from Developmental delay; Intellectual disability; Growth retardation; Microcephaly; Craniofacial dysmorphism; Charcot-Marie-Tooth disease, axonal, type 2Z, OMIM:616688 to Sensorineural hearing loss; Developmental delay; Intellectual disability; Growth retardation; Microcephaly; Craniofacial dysmorphism; Charcot-Marie-Tooth disease, axonal, type 2Z, OMIM:616688 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.132 | MORC2 |
Arina Puzriakova gene: MORC2 was added gene: MORC2 was added to Hearing loss. Sources: Literature for-review tags were added to gene: MORC2. Mode of inheritance for gene: MORC2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: MORC2 were set to 32693025 Phenotypes for gene: MORC2 were set to Developmental delay; Intellectual disability; Growth retardation; Microcephaly; Craniofacial dysmorphism; Charcot-Marie-Tooth disease, axonal, type 2Z, OMIM:616688 Review for gene: MORC2 was set to GREEN Added comment: MORC2 variants have commonly been associated with CMT, presenting axonal neuropathy with progressive weakness, muscle cramps and sensory impairment. However, Sacoto et al (2020) (PMID: 32693025) present a cohort of 20 individuals (19 kindreds) with a neurodevelopmental disorder characterised by DD, ID (18/20 - mild to severe), short stature (18/20), microcephaly (15/20) and variable craniofacial dysmorphisms. Hearing loss was observed in 11/19 subjects, primarily SNHL. Sources: Literature |
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Monogenic hearing loss v2.115 | NARS2 |
Eleanor Williams commented on gene: NARS2: PMID: 25807530 - Simon et al 2015 - report 2 unrelated families with 3 different variants in NARS2. One family is segregating nonsyndromic hearing loss (DFNB94) and another with Leigh syndrome. In the family with Leigh syndrome two affected children failed the newborn hearing test. PMID: 28077841 - Mizuguchi et al 2017 - report 4 individuals from 3 families with homozygous or compound het variants in NARS2 found by WES. All had hearing impairment (detected <2 years of age) among other clinical features including seizures and hypotonia. PMID: 30327238 - Seaver et al 2018 - report two infant brothers who presented with focal status epilepticus that progressed to lethal epileptic encephalopathy. Compound het missense variants found by WES in NARS2. The younger brother failed the newborn hearing screen. PMID: 25385316 - Vanlander et al 2015 - report 2 siblings born to consanguineous parents in which a homozygous missense mutation (c.822G>C) was found in NARS2). One sibling had mild intellectual disability and epilepsy in childhood, whereas the other had severe myopathy. Hearing loss NOT reported. |
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Monogenic hearing loss v2.86 | COL2A1 | Eleanor Williams Phenotypes for gene: COL2A1 were changed from Stickler syndrome, type I, 108300Kniest dysplasia, 156550Achondrogenesis, type II or hypochondrogenesis, 200610SED congenita, 183900SMED Strudwick type, 184250Epiphyseal dysplasia, multiple, with myopia and deafness, 132450Spondyloperipheral dysplasia, 271700SED, Namaqualand typeOsteoarthritis with mild chondrodysplasia, 604864Vitreoretinopathy with phalangeal epiphyseal dysplasiaPlatyspondylic skeletal dysplasia, Torrance type, 151210Otospondylomegaepiphyseal dysplasia, 215150Avascular necrosis of the femoral head, 608805Legg-Calve-Perthes disease, 150600Stickler sydrome, type I, nonsyndromic ocular, 609508Czech dysplasia, 609162; ticklersyndrome,typeI,108300Kniestdysplasia,156550Achondrogenesis,typeIIorhypochondrogenesis,200610SEDcongenita,183900 to Stickler syndrome, type I, 108300 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.74 | COL11A1 | Eleanor Williams Phenotypes for gene: COL11A1 were changed from Stickler syndrome, type II, 604841Marshall syndrome, 154780{Lumbar disc herniation, susceptibility to}, 603932Fibrochondrogenesis, 228520; Sticklersyndrome,typeII,604841 to Stickler syndrome, type II, MIM#604841; Deafness, autosomal dominant 37, MIM#618533 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.71 | COL11A1 | Eleanor Williams Added comment: Comment on list classification: Promoting from red to amber. 1 case of non-syndromic hearing loss in a large pedigree. Other reports are from patients with Stickler/Marshal syndrome. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.68 | ATP6V1B2 |
Eleanor Williams changed review comment from: Adding gene at request of Alistair Pagnamenta (University of Oxford). PMID: 32873933 Beauregard-Lacroix et al 2020 - identified the same truncating variant in ATP6V1B2 (NM_001693.4:c.1516C>T; p.Arg506*) in nine individuals from eight unrelated families with DOORS syndrome. All individuals presented with deafness as well as as onychodystrophy and abnormal fingers and/or toes. In addition, all families but one had developmental delay or intellectual disability and five individuals had epilepsy. Two additional familes with dominant deafness onychodystrophy (DDOD) syndrome also had the same variant in ATP6V1B2. Abstract only accessed. Sources: Expert Review, Literature; to: Adding gene at request of Alistair Pagnamenta (University of Oxford). Associated with Deafness, congenital, with onychodystrophy, autosomal dominant #124480 (AD) and Zimmermann-Laband syndrome 2 #616455 (AD) in OMIM. PMID: 32873933 Beauregard-Lacroix et al 2020 - identified the same truncating variant in ATP6V1B2 (NM_001693.4:c.1516C>T; p.Arg506*) in nine individuals from eight unrelated families with DOORS syndrome. All individuals presented with deafness as well as as onychodystrophy and abnormal fingers and/or toes. In addition, all families but one had developmental delay or intellectual disability and five individuals had epilepsy. Two additional familes with dominant deafness onychodystrophy (DDOD) syndrome also had the same variant in ATP6V1B2. Abstract only accessed. PMID: 28396750 Menendez et al 2017 - report a Guatemalan famliy with one child with deafness–onychodystrophy. The proband was found to be heterozygous for c.1516C>T [p.(Arg506*)] in ATP6V1B2. Neither parents or sisters had this variant. PMID: 24913193 Yuan et al 2014 - report 3 Chinese families with severe congenital sensorineural hearing loss, absence of nails and aplasia of the middle phalanx in the fifth fingers, but no inner ear malformation or intellectual disability. Using exome sequencing an identical heterozygous de novo c.1516 C>T (p.Arg506X) mutation in ATP6V1B2 was verified in two probands. In the third family the same variant was found by Sanger sequencing. A cochlea-specific Atp6v1b2-knockdown mouse model demonstrates that Atp6v1b2 deficiency leads to severe sensorineural hearing loss. |
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Monogenic hearing loss v2.38 | YARS |
Sarah Leigh gene: YARS was added gene: YARS was added to Hearing loss. Sources: Literature new-gene-name tags were added to gene: YARS. Mode of inheritance for gene: YARS was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: YARS were set to 30304524; 29232904; 27633801 Phenotypes for gene: YARS were set to Charcot-Marie-Tooth disease, dominant intermediate C 608323; Intellectual disability; deafness; nystagmus; liver dysfunction Review for gene: YARS was set to AMBER Added comment: Biallelic variants in three families with complex clinical conditions including developmental delay. PMID 30304524 reports an extended family with microcephaly, expressive language delay, hearing loss, amongst other features. PMID 29232904 reports a proband whose phenotype included hearing loss, retnititis pigmentosa and hypotonia, but did not include intellectual disability. PMID 27633801 reports two sibblings with hypotionia, the older brother at 15 years of age has mild delays, he attends school on an individualized educational program and functions at a grade 3 level, but not hearing loss was reported. Sources: Literature |
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Monogenic hearing loss v2.26 | DMXL2 | Eleanor Williams Phenotypes for gene: DMXL2 were changed from Sensorineural Hearing Loss; ORPHA90636; OMIM:612186 to ?Deafness, autosomal dominant 71, 617605; Epileptic encephalopathy, early infantile, 81, 618663 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.23 | DMXL2 | Eleanor Williams edited their review of gene: DMXL2: Added comment: After consultation with Genomics England clinical team it has been decided to rate this gene green as, although hearing loss presents with epileptic encephalopathy, hearing loss is a consistent and early feature.; Changed rating: GREEN; Changed mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.4 | SOX2 | Zornitza Stark reviewed gene: SOX2: Rating: AMBER; Mode of pathogenicity: None; Publications: 30262714, 16932809, 16145681; Phenotypes: Microphthalmia, syndromic 3, MIM# 206900; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v2.4 | DMXL2 | Zornitza Stark reviewed gene: DMXL2: Rating: GREEN; Mode of pathogenicity: None; Publications: 31688942; Phenotypes: Epileptic encephalopathy with deafness; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v1.50 | TBC1D24 | Louise Daugherty Added comment: Comment on phenotypes: Added phenotypes that indicate relevance to inclusion on the Hearing loss panel from OMIM. removed: Myoclonic epilepsy, infantile, familial, 605021;Myoclonicepilepsy,infantile,familial,605021Epilepticencephalopathy,earlyinfantile,16,615338 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monogenic hearing loss v1.50 | TBC1D24 | Louise Daugherty Phenotypes for gene: TBC1D24 were changed from Myoclonic epilepsy, infantile, familial, 605021; Myoclonicepilepsy,infantile,familial,605021Epilepticencephalopathy,earlyinfantile,16,615338 to Deafness , autosomal recessive 86, 614617; Deafness, autosomal dominant 65, 616044; DOORS syndrome, 220500; deafness, onychodystrophy, osteodystrophy, and mental retardation |