This gene encodes a nuclear protein belonging to the hairy and enhancer of split-related (HESR) family of basic helix-loop-helix (bHLH)-type transcriptional repressors. Expression of this gene is induced by the Notch and c-Jun signal transduction pathways. Two similar and redundant genes in mouse are required for embryonic cardiovascular development, and are also implicated in neurogenesis and somitogenesis. Alternative splicing results in multiple transcript variants.
basic helix-loop-helix protein OAF1; bHLH protein Hesr-1/Hey1; BHLHb31; cardiovascular basic helix-loop-helix factor 2; Cardiovascular helix-loop-helix factor 2; CHF-2; CHF2; Class B basic helix-loop-helix protein 31; Hairy and enhancer of split-related protein 1; Hairy-related transcription factor 1; Hairy/E(spl)-related with YRPW motif 1; hairy/enhancer-of-split related with YRPW motif 1; Hairy/enhancer-of-split related with YRPW motif protein 1; HERP2; hes-related family bHLH transcription factor with YRPW motif 1; HES-related repressor protein 1; HES-related repressor protein 2; HESR-1; HESR1; HRT-1; mHRT1; OAF1