{Reference Type}: Journal Article {Title}: A Case of Okur-Chung Neurodevelopmental Syndrome with a Novel, de novo Variant on the CSNK2A1 Gene in a Turkish Patient. {Author}: Zhuri D;Dusenkalkan F;Tunca Alparslan G;Gurkan H; {Journal}: Mol Syndromol {Volume}: 15 {Issue}: 1 {Year}: 2024 Feb {Factor}: 1.494 {DOI}: 10.1159/000530585 {Abstract}: UNASSIGNED: Okur-Chung neurodevelopmental syndrome (OCNDS; #617062) has been associated with heterozygous mutations in the CSNK2A1 gene (*115440) mapped on the chromosome's 20p13 region.
UNASSIGNED: The analysis was performed on a 2-year-old patient who was admitted to our genetic diseases evaluation center by his family with a complaint of hypotonia. We detected a heterozygous NM_177559.3 (CSNK2A1):c.1139_1140dupGG (p.Met381GlyfsTer32) variant in the CSNK2A1 gene from a whole-exome sequence analysis.
UNASSIGNED: The variant that we detected has not been reported in open-access databases to date, so it was evaluated as a novel likely pathogenic variant according to the ACMG-2015 criteria. No variant was detected upon segregation analysis of the patient's parents; therefore, the related variant was evaluated as de novo. In this study, we offer the first report of a pathogenic frameshift variant in the CSNK2A1 gene that has a relationship with OCNDS.