De novo variants in KDM2A cause a syndromic neurodevelopmental disorder.

ABSTRACT: Germline variants that disrupt components of the epigenetic machinery cause syndromic neurodevelopmental disorders. Using exome and genome sequencing, we identified de novo variants in KDM2A, a lysine demethylase crucial for embryonic development, in 18 individuals with developmental delays and/or intellectual disabilities. The severity ranged from learning disabilities to severe intellectual disability. Other core symptoms included feeding difficulties; growth issues, such as intrauterine growth restriction, short stature, and microcephaly; and recurrent facial features, such as epicanthic folds, upslanted palpebral fissures, thin vermillion of the lips, and low-set ears. Expression of human disease-causing KDM2A variants in a Drosophila melanogaster model led to neural degeneration, moto

SUBMITTER: Anderson EN 

PROVIDER: S-EPMC12824617 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature