SMAD3

Receptor-regulated SMAD (R-SMAD) that is an intracellular signal transducer and transcriptional modulator activated by TGF-beta (transforming growth factor) and activin type 1 receptor kinases. Binds the TRE element in the promoter region of many genes that are regulated by TGF-beta and, on formation of the SMAD3/SMAD4 complex, activates transcription. Also can form a SMAD3/SMAD4/JUN/FOS complex at the AP-1/SMAD site to regulate TGF-beta-mediated transcription. Has an inhibitory effect on wound healing probably by modulating both growth and migration of primary keratinocytes and by altering the TGF-mediated chemotaxis of monocytes. This effect on wound healing appears to be hormone-sensitive. Regulator of chondrogenesis and osteogenesis and inhibits early healing of bone fractures. Positively regulates PDPK1 kinase activity by stimulating its dissociation from the 14-3-3 protein YWHAQ which acts as a negative regulator (By similarity). {ECO:0000250|UniProtKB:P84022, ECO:0000269|PubMed:10559937, ECO:0000269|PubMed:11585338, ECO:0000269|PubMed:14617288, ECO:0000269|PubMed:15356634, ECO:0000269|PubMed:21035443}.(Source UnitProtKB).

SMAD family member 3

Source UniprotKB

Mus musculus [tax_id: 10090]

mm10