RUNX2 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

Chromosomal Location of Human Ortholog: 6p21

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

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

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

Disease: Metaphyseal Dysplasia With Maxillary Hypoplasia With Or Without Brachydactyly; Cleidocranial Dysplasia