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| Early onset or syndromic epilepsy v2.133 | EIF2AK2 | Arina Puzriakova Classified gene: EIF2AK2 as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.133 | EIF2AK2 | Arina Puzriakova Added comment: Comment on list classification: Currently, only half of reported cases present seizures which seem to follow after developmental concerns are apparent. Therefore rated Amber, awaiting further publications/clinical evidence to elucidate the contribution of EIF2AK2 variants to this phenotype. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.133 | EIF2AK2 | Arina Puzriakova Gene: eif2ak2 has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Early onset or syndromic epilepsy v2.132 | EIF2AK2 |
Arina Puzriakova gene: EIF2AK2 was added gene: EIF2AK2 was added to Genetic epilepsy syndromes. Sources: Literature Mode of inheritance for gene: EIF2AK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: EIF2AK2 were set to 32197074 Phenotypes for gene: EIF2AK2 were set to Leukoencephalopathy, developmental delay, and episodic neurologic regression syndrome, 618877 Added comment: Association with Developmental Delay, Leukoencephalopathy, and Neurologic Decompensation reported in both OMIM and G2P (probable). PMID: 32197074 (2020) - Distinct de novo missense variants were identified in eight unrelated individuals who all share a notable phenotypic overlap of developmental delay, cognitive impairment, white matter alterations, dysarthria or lack of speech, and neurologic regression with febrile illness. Other variable features included hypotonia (7/8), hypertonia (7/8), ataxia (6/8), dystonia (5/8), tremor (3/8) and seizures (4/8). Functional data confirm reduced kinase activity compared to the wildtype protein product, and authors predict a dominant-negative effect. Sources: Literature |
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| Early onset or syndromic epilepsy v2.128 | EIF2A |
Arina Puzriakova gene: EIF2A was added gene: EIF2A was added to Genetic epilepsy syndromes. Sources: Literature Mode of inheritance for gene: EIF2A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: EIF2A were set to 31130284 Phenotypes for gene: EIF2A were set to Intellectual disability; Seizures; ASD Review for gene: EIF2A was set to RED Added comment: Gene is not associated with any phenotype in OMIM or G2P. PMID: 31130284 - Distinct homozygous variants were identified in two cases presenting an overlapping phenotype of ID and epilepsy (intractable in one patient), as part of a large screening study of a highly consanguineous Saudi population. However, no segregation or follow-up functional studies were conducted to validate the variants, and there is currently no other publication data supporting this candidate gene and the relationship with epilepsy. Sources: Literature |
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