CBFA1 Antibody – Rabbit Polyclonal

AML3: Transcription factor involved in osteoblastic differentiation and skeletal morphogenesis. Essential for the maturation of osteoblasts and both intramembranous and endochondral ossification. CBF binds to the core site, 5'- PYGPYGGT-3', of a number of enhancers and promoters, including murine leukemia virus, polyomavirus enhancer, T-cell receptor enhancers, osteocalcin, osteopontin, bone sialoprotein, alpha 1(I) collagen, LCK, IL-3 and GM-CSF promoters. In osteoblasts, supports transcription activation: synergizes with SPEN/MINT to enhance FGFR2-mediated activation of the osteocalcin FGF-responsive element (OCFRE). Inhibits KAT6B-dependent transcriptional activation. Interaction with SATB2 results in enhanced DNA binding and transactivation by these transcription factors. Heterodimer of an alpha and a beta subunit. Interacts with HIVEP3 and HIPK3. The alpha subunit binds DNA as a monomer and through the Runt domain. DNA-binding is increased by heterodimerization. Interacts with XRCC6 (Ku70) and XRCC5 (Ku80). Interacts with KAT6A and KAT6B. Binds to cyclin B1 CCNB1. Interacts with DDX5. Specifically expressed in osteoblasts. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Transcription factor; DNA-binding

Cellular Component: nucleoplasm; transcription factor complex; nuclear chromatin; cytoplasm; nucleus

Molecular Function: protein domain specific binding; protein binding; DNA binding; histone deacetylase binding; bHLH transcription factor binding; chromatin binding; transcription factor activity; transcription factor binding; ATP binding

Biological Process: transcription from RNA polymerase II promoter; embryonic forelimb morphogenesis; positive regulation of transcription, DNA-dependent; cell maturation; BMP signaling pathway; neuron differentiation; regulation of transcription, DNA-dependent; positive regulation of cell proliferation; chondrocyte differentiation; skeletal development; endochondral ossification; T cell differentiation; regulation of odontogenesis of dentine-containing teeth; transcription, DNA-dependent; regulation of osteoblast differentiation; regulation of fibroblast growth factor receptor signaling pathway; chondrocyte development; stem cell differentiation; embryonic cranial skeleton morphogenesis; positive regulation of ossification; odontogenesis of dentine-containing teeth; osteoblast development; osteoblast differentiation; positive regulation of osteoblast differentiation; positive regulation of chondrocyte differentiation; skeletal morphogenesis; negative regulation of smoothened signaling pathway; positive regulation of transcription from RNA polymerase II promoter; regulation of ossification; negative regulation of transcription, DNA-dependent; osteoblast fate commitment