Activity

Filter

Cancel
Date Panel Item Activity
28 actions
Severe microcephaly v2.217 NUF2 Zornitza Stark gene: NUF2 was added
gene: NUF2 was added to Severe microcephaly. Sources: Literature
Mode of inheritance for gene: NUF2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NUF2 were set to 33721060
Phenotypes for gene: NUF2 were set to microcephaly; short stature; bilateral vocal cord paralysis; micrognathia; atrial septal defect
Review for gene: NUF2 was set to RED
Added comment: PMID: 33721060 - de novo missense variant identified in one male patient with microcephaly and short stature, with additional features, such as bilateral vocal cord paralysis, micrognathia and atrial septal defect.
Sources: Literature
Severe microcephaly v2.152 TRAPPC6B Arina Puzriakova Phenotypes for gene: TRAPPC6B were changed from Neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, MIM# 617862 to Neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, OMIM:617862
Severe microcephaly v2.150 PTPN23 Eleanor Williams changed review comment from: Associated with Neurodevelopmental disorder and structural brain anomalies with or without seizures and spasticity #618890 in OMIM,

Severe microcephaly confirmed in 2 cases, a further 3 cases with microcephaly reported.

PMID:31395947 - Bend et al 2020 - 7 patients with biallelic variants in PTPN23. 2 have microcephaly noted (1 with occipito-frontal head circumference (OFC) −3SD along with severe growth restriction, in the other the degree is not noted). In a 3rd case borderline microcephaly is reported (10th percentile).

PMID:29899372 - Smigiel et al 2018 - 1 patient with severe developmental delay, epilepsy, cortical blindness, hypomyelination and brain atrophy and compound heterozygous PTPN23 variants (c.1902C>G;p.(Asn634Lys), c.2974delC;p.(Leu992Tyrfs*168) identified by WES. OFC at birth was 30 cm (2 cm below 3 percentile), weight 2320 g (300 g below 3 percentile), length 52 cm (50–90 percentile),

PMID: 29090338 - Sowada et al 2017- 1 patient with developmental and epileptic encephalopathy with compound heterozygous PTPN23 variants (c.3586C>T (p.Arg1196*) and c.1595C>T (p.Pro532Leu)). OFC at birth was 31 cm (− 2.6 SD) but weight was 50th and length 26th percentile.

PMID: 27848944 - Trujillano et al 2017 - 1 patient with homozygous c.904A>G p.(M302V) variant in PTPN23 and microcephaly reported as part of the clinical phenotype. No details as to severity of the microcephaly. They classify the variant as a VUS.

PMID: 25558065 - Alazami et al 2015 - 1 patient with a variant (NM_015466:c.3995G >
T:p.R1332L) in PTPN23 and Global developmental delay, epilepsy and brain atrophy. Microcephaly not mentioned in publication, however in Bend et al 2020 Table 1 says this patient has progressive microcephaly.; to: Associated with Neurodevelopmental disorder and structural brain anomalies with or without seizures and spasticity #618890 in OMIM,

Severe microcephaly (OFC > 3 SD below mean) confirmed in 1 case, a further 4 cases with microcephaly reported.

PMID:31395947 - Bend et al 2020 - 7 patients with biallelic variants in PTPN23. 2 have microcephaly noted (1 with occipito-frontal head circumference (OFC) −3SD along with severe growth restriction, in the other the degree is not noted). In a 3rd case borderline microcephaly is reported (10th percentile).

PMID:29899372 - Smigiel et al 2018 - 1 patient with severe developmental delay, epilepsy, cortical blindness, hypomyelination and brain atrophy and compound heterozygous PTPN23 variants (c.1902C>G;p.(Asn634Lys), c.2974delC;p.(Leu992Tyrfs*168) identified by WES. OFC at birth was 30 cm (2 cm below 3 percentile), weight 2320 g (300 g below 3 percentile), length 52 cm (50–90 percentile),

PMID: 29090338 - Sowada et al 2017- 1 patient with developmental and epileptic encephalopathy with compound heterozygous PTPN23 variants (c.3586C>T (p.Arg1196*) and c.1595C>T (p.Pro532Leu)). OFC at birth was 31 cm (− 2.6 SD) but weight was 50th and length 26th percentile.

PMID: 27848944 - Trujillano et al 2017 - 1 patient with homozygous c.904A>G p.(M302V) variant in PTPN23 and microcephaly reported as part of the clinical phenotype. No details as to severity of the microcephaly. They classify the variant as a VUS.

PMID: 25558065 - Alazami et al 2015 - 1 patient with a variant (NM_015466:c.3995G >
T:p.R1332L) in PTPN23 and Global developmental delay, epilepsy and brain atrophy. Microcephaly not mentioned in publication, however in Bend et al 2020 Table 1 says this patient has progressive microcephaly.
Severe microcephaly v2.101 HPDL Arina Puzriakova gene: HPDL was added
gene: HPDL was added to Severe microcephaly. Sources: Literature
Q2_21_rating tags were added to gene: HPDL.
Mode of inheritance for gene: HPDL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: HPDL were set to 32707086; 33188300
Phenotypes for gene: HPDL were set to Neurodevelopmental disorder with progressive spasticity and brain white matter abnormalities, OMIM:619026; Neurodevelopmental disorder with progressive spasticity and brain white matter abnormalities, MONDO:0033613
Review for gene: HPDL was set to GREEN
Added comment: Associated with relevant phenotype in OMIM and has a 'probable' disease confidence for 'HPDL Neurodegenerative Disease' in Gene2Phenotype.

At least 34 cases from 21 unrelated families with a paediatric-onset spastic movement disorder and biallelic variants in this gene (PMIDs: 32707086 and 33188300). There is broad clinical variability ranging from severe, neonatal-onset neurodevelopmental delay with neuroimaging findings resembling mitochondrial encephalopathy to milder manifestation of adolescent-onset, isolated HSP. Microcephaly of relevant severity (HC ≤ 3 SD) was observed in 13/30 cases.

Supportive functional studies were reported, including localization of HPDL protein to the mitochondria and muscle fibre abnormalities and a KO mouse model displaying features of seizures, early lethality, smaller brain sizes, and cellular apoptosis.
Sources: Literature
Severe microcephaly v2.74 TRAPPC12 Arina Puzriakova Phenotypes for gene: TRAPPC12 were changed from Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, MIM# 617669 to Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, OMIM:617669; Early-onset progressive encephalopathy-hearing loss-pons hypoplasia-brain atrophy syndrome, MONDO:0044696
Severe microcephaly v2.72 TRAPPC12 Arina Puzriakova reviewed gene: TRAPPC12: Rating: GREEN; Mode of pathogenicity: None; Publications: 28777934, 32369837; Phenotypes: Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, OMIM:617669, Early-onset progressive encephalopathy-hearing loss-pons hypoplasia-brain atrophy syndrome, MONDO:0044696; Mode of inheritance: None
Severe microcephaly v2.20 EXOC7 Zornitza Stark gene: EXOC7 was added
gene: EXOC7 was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: EXOC7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EXOC7 were set to 32103185
Phenotypes for gene: EXOC7 were set to brain atrophy; seizures; developmental delay; microcephaly
Review for gene: EXOC7 was set to GREEN
gene: EXOC7 was marked as current diagnostic
Added comment: 4 families with 8 affected individuals with brain atrophy, seizures, and developmental delay, and in more severe cases microcephaly and infantile death. Four novel homozygous or comp.heterozygous variants found in EXOC7, which segregated with disease in the families. They showed that EXOC7, a member of the mammalian exocyst complex, is highly expressed in developing human cortex. In addition, a zebrafish model of Exoc7 deficiency recapitulates the human disorder with increased apoptosis and decreased progenitor cells during telencephalon development, suggesting that the brain atrophy in human cases reflects neuronal degeneration.
Sources: Expert list
Severe microcephaly v2.20 TRAPPC6B Zornitza Stark gene: TRAPPC6B was added
gene: TRAPPC6B was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: TRAPPC6B was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC6B were set to 28626029; 28397838; 31687267
Phenotypes for gene: TRAPPC6B were set to Neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, MIM# 617862
Review for gene: TRAPPC6B was set to GREEN
gene: TRAPPC6B was marked as current diagnostic
Added comment: Five unrelated families reported with autosomal recessive neurodegenerative disorder characterised by global developmental delay, severe intellectual disability with poor or absent speech and autistic stereotypic behaviors, microcephaly, early-onset generalized seizures, and hypotonia.
Sources: Expert list
Severe microcephaly v2.20 TRAPPC12 Zornitza Stark gene: TRAPPC12 was added
gene: TRAPPC12 was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: TRAPPC12 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC12 were set to 32369837; 28777934
Phenotypes for gene: TRAPPC12 were set to Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, MIM# 617669
Review for gene: TRAPPC12 was set to GREEN
gene: TRAPPC12 was marked as current diagnostic
Added comment: Four families reported with a severe progressive encephalopathy characterized by microcephaly, global developmental delay, and hearing loss.
Sources: Expert list
Severe microcephaly v2.20 SMO Zornitza Stark gene: SMO was added
gene: SMO was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: SMO was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SMO were set to 32413283
Phenotypes for gene: SMO were set to Microcephaly, congenital heart disease, polydactyly, aganglionosis
Review for gene: SMO was set to GREEN
gene: SMO was marked as current diagnostic
Added comment: Bi-allelic loss-of-function variations in SMO reported in seven individuals from five independent families. Wide phenotypic spectrum of developmental anomalies affecting the brain (hypothalamic hamartoma and microcephaly), heart (atrioventricular septal defect), skeleton (postaxial polydactyly, narrow chest, and shortening of long bones), and enteric nervous system (aganglionosis).
Sources: Expert list
Severe microcephaly v2.20 PTPN23 Zornitza Stark gene: PTPN23 was added
gene: PTPN23 was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: PTPN23 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PTPN23 were set to 31395947; 29899372; 29090338; 27848944; 25558065
Phenotypes for gene: PTPN23 were set to Neurodevelopmental disorder and structural brain anomalies with or without seizures and spasticity, MIM# 618890
Review for gene: PTPN23 was set to GREEN
Added comment: Over 10 families reported with an autosomal recessive neurologic disorder characterised by global developmental delay apparent from early infancy, poor overall growth often with microcephaly (6/10), impaired intellectual development with delayed or absent speech, axial hypotonia, and peripheral spasticity. Additional common but variable features include early-onset seizures, optic atrophy with poor visual fixation, and dysmorphic facial features. Brain imaging shows cerebral atrophy, poor or absent myelination with loss of white matter volume, and often hypoplasia of the corpus callosum and/or cerebellum.
Sources: Expert list
Severe microcephaly v2.19 MED17 Zornitza Stark gene: MED17 was added
gene: MED17 was added to Severe microcephaly. Sources: Expert list
Mode of inheritance for gene: MED17 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MED17 were set to 20950787; 30345598; 26004231
Phenotypes for gene: MED17 were set to Microcephaly, postnatal progressive, with seizures and brain atrophy, MIM# 613668
Review for gene: MED17 was set to GREEN
gene: MED17 was marked as current diagnostic
Added comment: Five individuals from four families reported initially, founder effect for p.Leu371Pro. Two additional families reported since with different variants, one family with milder phenotype.
Sources: Expert list
Severe microcephaly v1.62 ATRIP Louise Daugherty reviewed gene: ATRIP: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Severe microcephaly v1.62 ATRX Louise Daugherty reviewed gene: ATRX: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Severe microcephaly v1.62 ATR Louise Daugherty reviewed gene: ATR: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Severe microcephaly v1.61 ATRIP Louise Daugherty Source NHS GMS was added to ATRIP.
Severe microcephaly v1.61 ATRX Louise Daugherty Source NHS GMS was added to ATRX.
Severe microcephaly v1.61 ATR Louise Daugherty Source NHS GMS was added to ATR.
Severe microcephaly v1.37 ISCA-37408-Loss Louise Daugherty Region: ISCA-37408-Loss was added
Region: ISCA-37408-Loss was added to Primary Microcephaly - Microcephalic Dwarfism Spectrum. Sources: ClinGen,Expert Review Green
Mode of inheritance for Region: ISCA-37408-Loss was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for Region: ISCA-37408-Loss were set to 16963482; 22579565; 18245392
Phenotypes for Region: ISCA-37408-Loss were set to PMID: 16963482 idiopathic intellectual disability including moderate to severe intellectual disability, autism/autistic features, microcephaly, structural brain anomalies including cortical dysplasia/pachygyria, renal anomalies (multicystic kidney, hydronephrosis), digital camptodactyly, visual impairment, strabismus, neuromotor deficits, communication and attention impairments, and a distinctive pattern of craniofacial features. Dysmorphic craniofacial features include progressive microcephaly, flat occiput, widened inner canthal distance, small palpebral fissures, ptosis, long and straight eyelashes, broad and high nasal root extending to a widened, prominent nasal tip with elongated, smooth philtrum, rounding of the upper vermillion border and everted lower lips. PMID: 18245392 A 32-year-old, mentally retarded male was referred to our centre for further clinical genetic analysis. He was born to non-consanguineous parents after 42 weeks gestation with a birth weight of 3500 g. He had a healthy older brother. In the neonatal period he was hypotonic and at 8 weeks of age he underwent surgery because of an inguinal hernia with removal of an atrophic right testis. His motor development was severely delayed with sitting at 3.5 years and walking at 5 years of age. Speech was poorly developed, characterised by the usage of only a few words. During infancy an optic nerve hypoplasia was diagnosed, and during childhood he frequently suffered from luxations of the patellae, which required surgery. At the age of 32 years his height is 163 cm (_3 SDS) and head circumference 52.5 cm (_2.5 SDS). He has a narrow receding forehead, widened inner canthal distance of 3.5 cm (90th centile), normal outer canthal distance of 8.5 cm (25th centile), telecanthus, short and down slanting palpebral fissures, epicanthal folds, ptosis, long, straight eyelashes, high nasal bridge, low set large ears, flat philtrum, small mouth with high, narrow palate and retrognathia. The thorax is broad with increased internipple distance and slight gynaecomastia. A recent renal ultrasound revealed multiple cysts in the left, dystrophic kidney and two uncomplicated cysts in the enlarged, right kidney. The patient has a normally sized phallus with absent right testis and small left testis. His hands show a simian crease right and tapering fingers with broad proximal interphalangeal joints. He shows sandal gaps on both flat feet with clinodactyly of the fourth and fifth toes (and more); 612513; PMID: 22579565 severe developmental delay, congenital microcephaly, intractable epilepsy, and renal anomalies, as well as a congenital choledochal cyst which has not been previously reported in other patients with this cytogenetic defect
Severe microcephaly ATRX Rebecca Foulger edited their review of ATRX
Severe microcephaly ATRX Rebecca Foulger classified ATRX as green
Severe microcephaly ATRX Rebecca Foulger commented on ATRX
Severe microcephaly ATRX emma baple reviewed ATRX
Severe microcephaly ATRIP Alice Gardham marked ATRIP as ready
Severe microcephaly ATR Alice Gardham marked ATR as ready
Severe microcephaly ATR Alice Gardham classified ATR as green
Severe microcephaly ATR Alice Gardham reviewed ATR
Severe microcephaly ATRIP Rebecca Foulger commented on ATRIP