Rebecca Foulger edited their review of gene: CNKSR2: Added comment: Review and rating collated by Tracy Lester (Oxford Medical Genetics Laboratories Oxford University Hospitals NHS Foundation Trust, 2019_02_06) on behalf of Wessex and West Midlands GLH for GMS Neurology specialist test group, for Clinical Indication R59 'Early onset or syndromic epilepsy'. Review contributors: John Taylor and Helen Lord. Suggested gene rating: Green. ; Changed rating: AMBER
Tracy Lester reviewed gene: CNKSR2: Rating: GREEN; Mode of pathogenicity: ; Publications: 28098945, 25223753 ; Phenotypes: Mental retardation, X-linked, syndromic, Houge type,301008; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Rebecca Foulger Mode of inheritance for gene: CNKSR2 was changed from X-LINKED: hemizygous mutation in males, biallelic mutations in females to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Rebecca Foulger Added comment: Comment on mode of inheritance: Updated mode of inheritance from XLR to XLD based on PMID:28098945, so that affected females are detected. Damiano et al., 2017 report the first female with a CNKSR2 variant and childhood epilepsy- the sister had a less severe phenotype than her two brothers, which could be subject to X-inactivation (not directly measured). The mother, who also carries the point mutation, had only febrile seizures.
Rebecca Foulger Mode of inheritance for gene: CNKSR2 was changed from X-LINKED: hemizygous mutation in males, biallelic mutations in females to X-LINKED: hemizygous mutation in males, biallelic mutations in females