Rabbit anti-Human ID3 Polyclonal Antibody

Uniprot Id

Q02535

Target Species

Human

Target Name

ID3

Target Full Name

DNA-binding protein inhibitor ID-3

Target Function

Transcriptional regulator (lacking a basic DNA binding domain) which negatively regulates the basic helix-loop-helix (bHLH) transcription factors by forming heterodimers and inhibiting their DNA binding and transcriptional activity. Implicated in regulating a variety of cellular processes, including cellular growth, senescence, differentiation, apoptosis, angiogenesis, and neoplastic transformation. Involved in myogenesis by inhibiting skeletal muscle and cardiac myocyte differentiation and promoting muscle precursor cells proliferation. Inhibits the binding of E2A-containing protein complexes to muscle creatine kinase E-box enhancer. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK-ARNTL/BMAL1 heterodimer.

Target Subcellular Location

Nucleus.

Target Tissue Specificity

Expressed abundantly in lung, kidney and adrenal gland, but not in adult brain.

Target Synonyms

1R21; bHLHb25; Class B basic helix-loop-helix protein 25; DNA binding protein inhibitor ID 3; DNA-binding protein inhibitor ID-3; HEIR 1; HEIR1; Helix loop helix protein HEIR 1; Helix loop helix protein HEIR1 ; Helix-loop-helix protein HEIR-1; HLH642; ID 3; ID like protein inhibitor HLH 1R21 ; ID like protein inhibitor HLH 462 ; ID-like protein inhibitor HLH 1R21; ID3; ID3_HUMAN; Inhibitor of DNA binding 3; Inhibitor of DNA binding 3 dominant negative helix loop helix protein

Target Background

The protein encoded by this gene is a helix-loop-helix (HLH) protein that can form heterodimers with other HLH proteins. However, the encoded protein lacks a basic DNA-binding domain and therefore inhibits the DNA binding of any HLH protein with which it interacts.