The protein encoded by this gene inhibits transactivation of HIF1A-induced genes by competing with binding of hypoxia-inducible factor 1-alpha to p300-CH1. Mutations in this gene are a cause of cardiac septal defects. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2012]
Forensic Context
A study in rats demonstrated that acute ethanol exposure induces anxiolysis through epigenomic and transcriptomic changes in the amygdala, including increased chromatin accessibility and altered expression of genes such as Hif3a, where its knockdown in the central nucleus of the amygdala blocked the anxiolytic effect [Krishnan et al. DOI:10.1038/S41380-022-01732-2].