TGFBR3

Function

Cell surface receptor that regulates diverse cellular processes including cell proliferation, differentiation, migration, and apoptosis (PubMed:12958365, PubMed:19416857). Initiates BMP, inhibin, and TGF-beta signaling pathways by interacting with different ligands including TGFB1, BMP2, BMP5, BMP7 or GDF5 (PubMed:18184661). Alternatively, acts as a cell surface coreceptor for BMP ligands, serving to enhance ligand binding by differentially regulating BMPR1A/ALK3 and BMPR1B/ALK6 receptor trafficking (PubMed:19726563). Promotes epithelial cell adhesion, focal adhesion formation and integrin signaling during epithelial cell spreading on fibronectin (PubMed:22562249). By interacting with the scaffolding protein beta-arrestin2/ARRB2, regulates migration or actin cytoskeleton and promotes the activation of CDC42 as well as the inhibition of NF-kappa-B (PubMed:19416857, PubMed:19325136). In gonadotrope cells, acts as an inhibin A coreceptor and regulates follicle-stimulating hormone (FSH) levels and female fertility (By similarity). Plays a role in the inhibition of directed and random cell migration in epithelial cells by altering the actin cytoskeletal organization (PubMed:19416857). Participates in epithelial-mesenchymal transformation (EMT) upon binding to BMP2 or TGFB2, by activating the PAR6/SMURF1/RHOA pathway (By similarity).

(Microbial infection) May act as a receptor for human cytomegalovirus in different cell types by interacting with HCMV trimer composed of GO, GH and GL.

Post-translational modifications

Extensively modified by glycosaminoglycan groups (GAG).

Phosphorylated in the cytoplasmic domain by the type II receptor TGFBR2 at THR-840 to mediate recruitment of ARRB2 and subsequent internalization of TGFBR2 and TGFBR3.

Cellular localization

• Cell membrane
• Single-pass type I membrane protein
• Secreted
• Secreted
• Extracellular space
• Extracellular matrix
• Exists both as a membrane-bound form and as soluble form in serum and in the extracellular matrix.

Alternative names

Transforming growth factor beta receptor type 3, TGF-beta receptor type 3, TGFR-3, Betaglycan, Transforming growth factor beta receptor III, TGF-beta receptor type III, TGFBR3

Database links

swissprot:Q03167 omim:600742 entrezGene:7049

Other research areas

• Oncology