Id1 Recombinant Rabbit Monoclonal Antibody (IRS159RB)

UNIPROT #

P41134

PROTEIN NAME

Id1

SYNONYMS

bHLHb24 antibody;Class B basic helix-loop-helix protein 24 antibody;dJ857M17.1.2 (inhibitor of DNA binding 1, dominant negative helix-loop-helix protein) antibody;DNA binding protein inhibitor ID 1 antibody;DNA binding protein inhibitor ID1 antibody;DNA-binding protein inhibitor ID-1 antibody;Dominant negative helix loop helix protein antibody;ID 1 antibody;ID antibody;ID1 antibody;ID1_HUMAN antibody;Inhibitor of Differentiation 1 antibody;Inhibitor of DNA binding 1 antibody;inhibitor of DNA binding 1, dominant negative helix-loop-helix protein antibody

SUBCELLULAR LOCATION

Cytoplasm. Nucleus.

FUNCTION

DNA-binding protein inhibitor ID-1 is a protein that in humans is encoded by the ID1 gene. The protein encoded by this gene is a helix-loop-helix (HLH) protein that can form heterodimers with members of the basic HLH family of transcription factors. The encoded protein has no DNA binding activity and therefore can inhibit the DNA binding and transcriptional activation ability of basic HLH proteins with which it interacts. This protein may play a role in cell growth, senescence, and differentiation. Two transcript variants encoding different isoforms have been found for this gene. ID1 has been shown to interact weakly with MyoD but very tightly with ubiquitously expressed E proteins. E proteins heterodimerize with tissue restricted bHLH proteins such as Myod, NeuroD, etc. to form active transcription complexes so by sequestering E proteins, Id proteins can inhibit tissue restricted gene expression in multiple cell lineages using the same biochemical mechanism. Other interacting partners include CASK. ID1 can be used to mark endothelial progenitor cells which are critical to tumor growth and angiogenesis. Targeting ID1 results in decreased tumor growth. ID1 has been shown to be targeted by cannabidiol in certain gliomas and breast cancers.