Mothers Against Decapentaplegic Homolog 3 (SMAD3/MADH3) ELISA Kit for Human

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

Chromosomal Location of Human Ortholog: 15q22.33

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

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

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

Disease: Loeys-dietz Syndrome 3