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Early onset or syndromic epilepsy v2.413 CSNK2A1 Arina Puzriakova Phenotypes for gene: CSNK2A1 were changed from Neurodevelopmental abnormalities and dysmorphic features; seizures; Okur-Chung neurodevelopmental syndrome, 617062; CSNK2A1 syndrome to Okur-Chung neurodevelopmental syndrome, OMIM:617062
Early onset or syndromic epilepsy v1.331 CSNK2A1 Rebecca Foulger Source Wessex and West Midlands GLH was added to CSNK2A1.
Early onset or syndromic epilepsy v1.330 CSNK2A1 Rebecca Foulger Source NHS GMS was added to CSNK2A1.
Early onset or syndromic epilepsy v1.304 CSNK2A1 Rebecca Foulger commented on gene: CSNK2A1: Kept rating as Red based on post-Webex reviews from Helen Lord and Alison Callaway: Although there is an argument to upgrade to Amber, epilepsy is not a major part of the overall phenotype so on balance kept rating as Red.
Early onset or syndromic epilepsy v1.304 CSNK2A1 Rebecca Foulger Phenotypes for gene: CSNK2A1 were changed from seizures; Okur-Chung neurodevelopmental syndrome, 617062; CSNK2A1 syndrome to Neurodevelopmental abnormalities and dysmorphic features; seizures; Okur-Chung neurodevelopmental syndrome, 617062; CSNK2A1 syndrome
Early onset or syndromic epilepsy v1.303 CSNK2A1 Rebecca Foulger Publications for gene: CSNK2A1 were set to 30655572
Early onset or syndromic epilepsy v1.262 CSNK2A1 Rebecca Foulger commented on gene: CSNK2A1: Review and rating collated by Helen Lord (Oxford University Hospitals NHS Foundation Trust, 2019_08_30) on behalf of West Midlands, Oxford and Wessex GLH for GMS Neurology specialist test group. This gene was added to the Genetic epilepsy syndromes panel after the initial panel was reviewed by West Midlands, Oxford and Wessex GLH: this gene was therefore reviewed following the group Webex call on 2019_08_08 for Clinical Indication R59 Early onset or syndromic epilepsy.
Early onset or syndromic epilepsy v1.261 CSNK2A1 Helen Lord reviewed gene: CSNK2A1: Rating: RED; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Early onset or syndromic epilepsy v1.256 CSNK2A1 Alison Callaway reviewed gene: CSNK2A1: Rating: AMBER; Mode of pathogenicity: None; Publications: 27048600; Phenotypes: Neurodevelopmental abnormalities and dysmorphic features; Mode of inheritance: None
Early onset or syndromic epilepsy v1.81 CSNK2A1 Rebecca Foulger Classified gene: CSNK2A1 as Red List (low evidence)
Early onset or syndromic epilepsy v1.81 CSNK2A1 Rebecca Foulger Added comment: Comment on list classification: Rated CSNK2A1 as Red based on 1 paper (PMID:30655572) with 2 unrelated Japanese patients and de novo variants. Functional studies were not performed, and the seizures (and other features) were variable between the patients.
Early onset or syndromic epilepsy v1.81 CSNK2A1 Rebecca Foulger Gene: csnk2a1 has been classified as Red List (Low Evidence).
Early onset or syndromic epilepsy v1.80 CSNK2A1 Rebecca Foulger gene: CSNK2A1 was added
gene: CSNK2A1 was added to Genetic epilepsy syndromes. Sources: Literature
Mode of inheritance for gene: CSNK2A1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: CSNK2A1 were set to 30655572
Phenotypes for gene: CSNK2A1 were set to seizures; Okur-Chung neurodevelopmental syndrome, 617062; CSNK2A1 syndrome
Review for gene: CSNK2A1 was set to AMBER
Added comment: Added CSNK2A1 to the epilepsy panel based on PMID:30655572. Nakashima et al, 2019 describe 4 patients with DD and seizures. Two of the patients (both Japanese) had de novo variants in CSNK2A1: c.593A>G, p.Lys198Arg in Patient 1, c.571C>T, p.Arg191* in Patient 2. Although both shared global DD and seizures, patient 1 showed later onset (4 yrs old) seizures which were less frequent. Additional features in Patient 1 include facial dysmorphisms, short stature and muscle weakness. Patient 2 had a more severe phenotype with seizures starting in the early infantile stage (5 months) with acute encephalopathy and death age 1 yr, 7 months. Note that Patient 1 had 3 candidate de novo deleterious variants (ATAD2B, TOPORS, CSNK2A1): ACMG variant guidelines were used to evaluate the pathogenicity of the variants. ATAD2B and TOPORS variants were likely pathogenic, and CSNK2A1 variant was pathogenic. In Patient 2, no further likely de novo variants were found.
Sources: Literature
Early onset or syndromic epilepsy v1.78 CSNK2B Rebecca Foulger commented on gene: CSNK2B: PMID:30655572: Nakashima et al, 2019 describe 4 patients with ID, DD and seizures. Two of the patients had variants in CSNK2B: c.533_534insGT, p.(Pro179Tyrfs*49) in Malaysian Patient 3, and c.494A>G, p.(His165Arg) in Japanese Patient 4. Both had seizures within 2 months of age. Both variants occurred de novo. In each patient, only 1 likely candidate variant was proposed. Functional assays suggested that Pro179Tyrfs*49 mutant protein was produced but showed disrupted interaction with CSNK2A1.