Inhibitor of DNA binding 2, bHLHb26, GIG8, ID2A, ID2H, MGC26389
ID2 belongs to the inhibitor of DNA binding (ID) family, members of which are transcriptional regulators that contain a helix-loop-helix (HLH) domain but not a basic domain. Members of the ID family inhibit the functions of basic helix-loop-helix transcr