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ID3 Mouse anti-Human, Clone: OTI4D1, Invitrogen™

Mouse Monoclonal Antibody

Manufacturer:  Invitrogen MA524999

Catalog No. PIMA524999



Members of the Id family of basic helix-loop-helix (bHLH) proteins include ID1, ID2, ID3 and ID4. They are ubiquitously expressed and dimerize with members of the class A and B HLH proteins. Due to the absence of the basic region, the resulting heterodimers cannot bind DNA. The ID-type proteins thus appear to negatively regulate DNA binding of bHLH proteins. Since ID1 inhibits DNA binding of E12 and Myo D, it apparently functions to inhibit muscle-specific gene expression. Under conditions that facilitate muscle cell differentiation, the ID protein levels fall, allowing E12 and/or E47 to form heterodimers with Myo D and myogenin, which in turn activate myogenic differentiation. It has been shown that expression of each of the ID proteins is strongly dependent on growth factor activation and that reduction of ID mRNA levels by antisense oligonucleotides leads to a delayed reentry of arrested cells into the cell cycle following growth factor stimulation.


0.56 mg/mL
PBS with 1% BSA, 50% glycerol and 0.02% sodium azide; pH 7.3
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 domit negative helix loop helix protein;
100 μL
-20° C, Avoid Freeze/Thaw Cycles
Flow Cytometry, Immunocytochemistry, Immunofluorescence, Western Blot
Full length human recombit protein of ID3 produced in HEK293T cell
Affinity Chromatography
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