Exome Sequencing Identifies a Novel SIN3A Variant in a Patient with Witteveen-Kolk Syndrome.

ABSTRACT: Witteveen-Kolk syndrome (WITKOS; OMIM #613406) is a recently described, rare neurodevelopmental syndrome characterized by mild intellectual disability and a recognizable facial gestalt. WITKOS is caused by heterozygous loss-of-function variants in SIN3A. It shares some features with 15q24 deletion syndrome but to date has only been described in a limited number of patients mostly of Northern European ancestry. Here, we report the first patient with Hispanic ancestry to our knowledge diagnosed with WITKOS, who has a novel, truncating variant in the SIN3A gene. Clinical exome sequencing performed in-house using a custom bioinformatics pipeline identified a de novo heterozygous, nonsense variant in SIN3A, c.1015C>T (p.Gln339Ter) that has not been previously described in t

SUBMITTER: Penon-Portmann M 

PROVIDER: S-EPMC9421682 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature