basic helix-loop-helix (bHLH) domain found in protein atonal homolog 7 (ATOH7) and similar proteins
ATOH7, also termed Class A basic helix-loop-helix protein 13 (bHLHa13), or helix-loop-helix protein hATH-5 (hATH5), or Math5, is a bHLH transcription factor involved in the differentiation of retinal ganglion cells.