function:Transcriptional factor that may have pleiotropic effects during embryogenesis and in the adult.,similarity:Contains 1 basic helix-loop-helix (bHLH) domain.,similarity:Contains 1 PAC (PAS-associated C-terminal) domain.,similarity:Contains 1 Single-minded C-terminal domain.,similarity:Contains 2 PAS (PER-ARNT-SIM) domains.,subunit:Efficient DNA binding requires dimerization with another bHLH protein. Heterodimer of SIM1 and ARNT.,
Nucleus .