Anti-BHLHA15 antibodies are used in the immunodetection of the protein basic helix-loop-helix family member a15. In humans, the canonical protein has a reported length of 189 amino acid residues and a mass of 20.8 kDa. Its subcellular localization is in the nucleus. It is reported to be expressed in the brain, liver, spleen and skeletal muscle. BHLHA15 is reported to play a role in in controlling the transcriptional activity of MYOD1, ensuring that expanding myoblast populations remain undifferentiated. Synonyms for this target antigen include MIST-1, basic helix-loop-helix domain containing, class B, 8, class B basic helix-loop-helix protein 8, class II bHLH protein MIST1, and class A basic helix-loop-helix protein 15.