Genetic variants in the KDM6B gene are associated with neurodevelopmental delays and dysmorphic features

Am J Med Genet A. 2019 Jul;179(7):1276-1286. doi: 10.1002/ajmg.a.61173. Epub 2019 May 23.

Abstract

Lysine-specific demethylase 6B (KDM6B) demethylates trimethylated lysine-27 on histone H3. The methylation and demethylation of histone proteins affects gene expression during development. Pathogenic alterations in histone lysine methylation and demethylation genes have been associated with multiple neurodevelopmental disorders. We have identified a number of de novo alterations in the KDM6B gene via whole exome sequencing (WES) in a cohort of 12 unrelated patients with developmental delay, intellectual disability, dysmorphic facial features, and other clinical findings. Our findings will allow for further investigation in to the role of the KDM6B gene in human neurodevelopmental disorders.

Keywords: KDM6B; demethylase; lysine; neurodevelopmental.

MeSH terms

  • Adolescent
  • Child, Preschool
  • Cohort Studies
  • Female
  • Genetic Variation*
  • Humans
  • Jumonji Domain-Containing Histone Demethylases / genetics*
  • Male
  • Neurodevelopmental Disorders / genetics*

Substances

  • Jumonji Domain-Containing Histone Demethylases
  • KDM6B protein, human