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| Early onset or syndromic epilepsy v2.274 | ABCA2 | Helen Lord reviewed gene: ABCA2: Rating: AMBER; Mode of pathogenicity: None; Publications: 29302074, 31047799, 30237576; Phenotypes: intellectual delay, poor growth, ataxia, seizures; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.213 | ABCA2 | Arina Puzriakova Phenotypes for gene: ABCA2 were changed from Intellectual developmental disorder with poor growth and with or without seizures or ataxia, 618808 to Intellectual developmental disorder with poor growth and with or without seizures or ataxia, OMIM:618808; Intellectual developmental disorder with poor growth and with or without seizures or ataxia, MONDO:0032930 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.212 | ABCA2 | Arina Puzriakova Classified gene: ABCA2 as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.212 | ABCA2 | Arina Puzriakova Added comment: Comment on list classification: Rating Amber as 1) only 2 cases with seizures; 2) epilepsy is not a prominent feature of the overall phenotype; 3) seizures were either resolved or managed by medication. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.212 | ABCA2 | Arina Puzriakova Gene: abca2 has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.211 | ABCA2 | Arina Puzriakova reviewed gene: ABCA2: Rating: AMBER; Mode of pathogenicity: None; Publications: 30237576, 29302074, 31047799; Phenotypes: Intellectual developmental disorder with poor growth and with or without seizures or ataxia, OMIM: 618808; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.122 | ABCA2 |
Konstantinos Varvagiannis gene: ABCA2 was added gene: ABCA2 was added to Genetic epilepsy syndromes. Sources: Literature Mode of inheritance for gene: ABCA2 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ABCA2 were set to 30237576; 29302074; 31047799 Phenotypes for gene: ABCA2 were set to Intellectual developmental disorder with poor growth and with or without seizures or ataxia, 618808 Penetrance for gene: ABCA2 were set to Complete Review for gene: ABCA2 was set to GREEN Added comment: Biallelic pathogenic ABCA2 variants cause Intellectual developmental disorder with poor growth and with or without seizures or ataxia (MIM 618808). There are 3 relevant publications (01-07-2020) : - Maddirevula et al [2019 - PMID: 30237576] described briefly 2 unrelated subjects (16-2987, 16DG0071) both DD and seizures among other manifestations. - Hu et al [2019 - PMID: 29302074] reported 3 sibs (M8600615 - III:1-3) born to consanguineous parents (M8600615 - III:1-3) with DD/ID (formal confirmation of moderate ID, in those (2) evaluated). One also presented with seizures. - Aslam and Naz [2019 - PMID: 31047799] provided clinical details on 2 siblings born to consanguineous parents. ID was reported for the older sib but was absent in the younger one. Seizures were not part of the phenotype. All subjects harbored biallelic pLoF variants. N.B. : Steinberg et al [2015 - PMID: 25773295], within a cohort of patients with ALS, identified one with biallelic ABCA2 variants. As however Aslam and Naz comment, this person harbored a single pathogenic variant, with a second one rather unlikely to be pathogenic due to high allele frequency. Overall this gene can be considered for inclusion with green rating in both ID and epilepsy panels (each in >=3 unrelated individuals). Sources: Literature |
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