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Early onset or syndromic epilepsy v9.51 ATP2B2 Achchuthan Shanmugasundram Tag Q3_26_NHS_review tag was added to gene: ATP2B2.
Tag Q3_26_promote_green tag was added to gene: ATP2B2.
Early onset or syndromic epilepsy v9.51 ATP2B2 Achchuthan Shanmugasundram Classified gene: ATP2B2 as Amber List (moderate evidence)
Early onset or syndromic epilepsy v9.51 ATP2B2 Achchuthan Shanmugasundram Added comment: Comment on list classification: As there is sufficient evidence available for the association of monoallelic ATP2B2 variants with seizures (eight families), this gene can be promoted to green rating in the next GMS update.
Early onset or syndromic epilepsy v9.51 ATP2B2 Achchuthan Shanmugasundram Gene: atp2b2 has been classified as Amber List (Moderate Evidence).
Early onset or syndromic epilepsy v9.50 ATP2B2 Achchuthan Shanmugasundram Phenotypes for gene: ATP2B2 were changed from Global Developmental Delay; Delayed Motor Development; Ataxia; Impaired Speech; Intellectual Disability; Cerebellar Atrophy; Behavioural Issues; Seizures; Hypotonia; Dysmorphic Features; Hearing Abnormalities; Ophthalmological Abnormalities to neurodevelopmental disorder, MONDO:0700092; cerebellar ataxia, MONDO:0000437; epilepsy, MONDO:0005027; intellectual disability,MONDO:0001071; inherited dystonia, MONDO:0044807
Early onset or syndromic epilepsy v9.49 ATP2B2 Achchuthan Shanmugasundram Publications for gene: ATP2B2 were set to PMID: 29655659; 37675773; 39367743
Early onset or syndromic epilepsy v9.48 ATP2B2 Achchuthan Shanmugasundram Mode of pathogenicity for gene: ATP2B2 was changed from None to Other
Early onset or syndromic epilepsy v9.47 ATP2B2 Achchuthan Shanmugasundram Mode of inheritance for gene: ATP2B2 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Early onset or syndromic epilepsy v9.46 ATP2B2 Achchuthan Shanmugasundram reviewed gene: ATP2B2: Rating: GREEN; Mode of pathogenicity: Other; Publications: 29655659, 37675773, 39367743; Phenotypes: neurodevelopmental disorder, MONDO:0700092, cerebellar ataxia, MONDO:0000437, epilepsy, MONDO:0005027, intellectual disability,MONDO:0001071, inherited dystonia, MONDO:0044807; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Early onset or syndromic epilepsy v9.13 ATP2B2 Christopher Burke gene: ATP2B2 was added
gene: ATP2B2 was added to Early onset or syndromic epilepsy. Sources: Expert Review
Mode of inheritance for gene: ATP2B2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ATP2B2 were set to PMID: 29655659; 37675773; 39367743
Phenotypes for gene: ATP2B2 were set to Global Developmental Delay; Delayed Motor Development; Ataxia; Impaired Speech; Intellectual Disability; Cerebellar Atrophy; Behavioural Issues; Seizures; Hypotonia; Dysmorphic Features; Hearing Abnormalities; Ophthalmological Abnormalities
Penetrance for gene: ATP2B2 were set to unknown
Review for gene: ATP2B2 was set to GREEN
gene: ATP2B2 was marked as current diagnostic
Added comment: ATP2B2 is associated with Deafness, autosomal dominant 82 (OMIM 619804) in OMIM. Emerging evidence suggests that heterozygous pathogenic variants in ATP2B2 can cause a neurodevelopmental phenotype.

Recent papers have outlined and extended neurodevelopmental phenotype (PMID: 39367743, PMID: 37675773, PMID: 29655659) not documented in OMIM or G2P. Summarised phenotypes from 14 reported individuals (13 unrelated individuals) - Global developmental delay (12/14), delayed motor development (12/14), ataxia (9/14), impaired speech (13/14), intellectual disability (13/14), cerebellar atrophy (4/14), behavioural issues (9/14), seizures (9/14), hypotonia (6/14), dysmorphic features (4/14), hearing abnormalities (3/14), and ophthalmological abnormalities (6/14).

PMID: 29655659 - Heterozygous missense. Targeted NGS, unknown inheritance.

PMID: 37675773 - Trio exome sequencing for families 1-6, confirmed de novo status for all 6 families. Seventh family could not be confirmed. 5 missense variants, 2 frameshift variants.

PMID: 39367743 - Trio exome sequencing for families 1-4, confirmed de novo in all 4 families. One case paternally inherited, one unknown. 4 missense variants, 1 frameshift variant (2 individuals in the same family).

ATP2B2 is plasma membrane Ca2+ ATPase involved in Ca2+ homeostasis. Ca2+ deregulation in humans and mice can cause cognitive, behavioural, sensory, and movement disorders. Discussed in detail in PMID: 37675773.

Request addition to R27, R29, R55, R59, R69, R84, Ataxia and Cerebellar Anomalies - Narrow Panel.
Sources: Expert Review