NCIt definition : Transforming growth factor beta receptor type 3 (851 aa, 93 kDa) is encoded by the
human TGFBR3 gene. This protein is involved in TGF-beta binding.;
NCIt note : TGFBR3 binds to TGF-Beta and may be a TGFBR and FGFR receptor accessory molecule;
it may capture and retain TGF-Beta for presentation to signaling receptors. TGFBR3
can also bind inhibin and function as coreceptor with ActRII; inhibin forms crosslinked
complexes with TGFBR3 and ActRII. TGFBR3 also binds beta arrestin 2, which appears
to trigger cytoplasmic phosphorylation by TGFBR2.; There are three TGF-beta receptors, Type I and Type II together form a heterodimeric
signaling complex that is essential for the transduction of the anti-proliferative
signals of TGF-beta. Type III is a transmembrane proteoglycan with a large extracellular
domain and a cytoplasmic domain that lacks an obvious signaling motif.;