SMAD3 Antibody – Mouse Monoclonal

The protein encoded by this gene belongs to the SMAD, a family of proteins similar to the gene products of the Drosophila gene 'mothers against decapentaplegic' (Mad) and the C. elegans gene Sma. SMAD proteins are signal transducers and transcriptional modulators that mediate multiple signaling pathways. This protein functions as a transcriptional modulator activated by transforming growth factor-beta and is thought to play a role in the regulation of carcinogenesis. [provided by RefSeq, Apr 2009]

SMAD3: transcription factor phosphorylated and activated by TGF-beta-type receptors. A receptor-regulated Smad (R-smad). Binds directly to consensus DNA-binding elements in the promoters of target genes. In mouse required for establishemnt of the mucosal immune response and proper development of skeleton.

Protein type: Transcription factor; Nuclear receptor co-regulator; DNA-binding

Chromosomal Location of Human Ortholog: 15q22.33

Cellular Component: nucleoplasm; transcription factor complex; nuclear chromatin; cytoplasm; plasma membrane; nuclear inner membrane; cytosol; nucleus; receptor complex

Molecular Function: identical protein binding; ubiquitin binding; protein homodimerization activity; zinc ion binding; chromatin DNA binding; beta-catenin binding; transcription factor binding; protein kinase binding; transforming growth factor beta receptor, pathway-specific cytoplasmic mediator activity; phosphatase binding; collagen binding; protein binding; sequence-specific DNA binding; ubiquitin protein ligase binding; double-stranded DNA binding; bHLH transcription factor binding; transforming growth factor beta receptor binding; transcription factor activity

Biological Process: developmental growth; positive regulation of positive chemotaxis; positive regulation of transcription, DNA-dependent; activin receptor signaling pathway; paraxial mesoderm morphogenesis; embryonic pattern specification; regulation of transforming growth factor beta receptor signaling pathway; transforming growth factor beta receptor signaling pathway; positive regulation of stress fiber formation; embryonic foregut morphogenesis; negative regulation of osteoblast differentiation; negative regulation of mitotic cell cycle; cell cycle arrest; regulation of striated muscle development; pericardium development; somitogenesis; transcription, DNA-dependent; embryonic cranial skeleton morphogenesis; osteoblast development; regulation of transcription from RNA polymerase II promoter; positive regulation of chondrocyte differentiation; mesoderm formation; negative regulation of osteoblast proliferation; positive regulation of transcription from RNA polymerase II promoter; negative regulation of protein catabolic process; negative regulation of apoptosis; endoderm development; evasion of host defenses by virus; wound healing; T cell activation; primary microRNA processing; negative regulation of transcription from RNA polymerase II promoter; regulation of epithelial cell proliferation; negative regulation of protein amino acid phosphorylation; positive regulation of focal adhesion formation; transport; ureteric bud development; positive regulation of transforming growth factor-beta3 production; positive regulation of transcription factor import into nucleus; thyroid gland development; heart looping; caspase activation; transcription initiation from RNA polymerase II promoter; intercellular junction assembly and maintenance; regulation of immune response; regulation of transforming growth factor-beta2 production; protein stabilization; regulation of binding; in utero embryonic development; positive regulation of bone mineralization; liver development; SMAD protein complex assembly; immune system development; positive regulation of interleukin-1 beta production; negative regulation of inflammatory response; response to hypoxia; immune response; gene expression; negative regulation of cell growth; negative regulation of transforming growth factor beta receptor signaling pathway; positive regulation of cell migration

Disease: Loeys-dietz Syndrome 3