Myogenic Regulatory Factors

**Definition:** A family of muscle-specific transcription factors which bind to DNA in control regions and thus regulate myogenesis. All members of this family contain a conserved helix-loop-helix motif which is homologous to the myc family proteins. These factors are only found in skeletal muscle. Members include the myoD protein (MYOD PROTEIN); MYOGENIN; myf-5, and myf-6 (also called MRF4 or herculin).

**Tree numbers:** - D12.776.210.500.570 - D12.776.260.103.750 - D12.776.930.125.750

**Synonyms:** - Myogenic Regulatory Factor