Function:Involved in muscle differentiation (myogenic factor) . Induces fibroblasts to differentiate into myoblasts. Activates muscle-specific promoters. Interacts with and is inhibited by the twist protein. This interaction probably involves the basic domains of both proteins. ,online information:MyoD entry ,PTM:Acetylated by a complex containing EP300 and PCAF. The acetylation is essential to activate target genes. Conversely , its deacetylation by SIRT1 inhibits its function. ,PTM:Ubiquitinated on the N-terminus; which is required for proteasomal degradation. ,similarity:Contains 1 basic helix-loop-helix (bHLH) domain. ,subunit:Efficient DNA binding requires dimerization with another bHLH protein. Seems to form active heterodimers with ITF-2. Interacts with SUV39H1. ,
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