BMPR1A Antibody – Mouse Monoclonal

The bone morphogenetic protein (BMP) receptors are a family of transmembrane serine/threonine kinases that include the type I receptors BMPR1A and BMPR1B and the type II receptor BMPR2. These receptors are also closely related to the activin receptors, ACVR1 and ACVR2. The ligands of these receptors are members of the TGF-beta superfamily. TGF-betas and activins transduce their signals through the formation of heteromeric complexes with 2 different types of serine (threonine) kinase receptors: type I receptors of about 50-55 kD and type II receptors of about 70-80 kD. Type II receptors bind ligands in the absence of type I receptors, but they require their respective type I receptors for signaling, whereas type I receptors require their respective type II receptors for ligand binding. [provided by RefSeq, Jul 2008]

BMPR1A: a serine/threonine-protein kinase receptor for Bone morphogenetic protein-2 and -4 (BMP-2 and BMP-4). Defects in BMPR1A are a cause of juvenile polyposis syndrome (JPS) and Cowden disease (CD), a cancer syndrome characterized by multiple hamartomas and by a high risk for breast, thyroid and endometriel cancers.

Protein type: EC 2.7.11.30; Kinase, protein; Membrane protein, integral; Protein kinase, Ser/Thr (receptor); Protein kinase, TKL; STKR family; TKL group; Type1 subfamily

Chromosomal Location of Human Ortholog: 10q23.2

Cellular Component: caveola; external side of plasma membrane; plasma membrane

Molecular Function: ATP binding; glycoprotein binding; protein binding; protein homodimerization activity; protein serine/threonine kinase activity; SMAD binding; transmembrane receptor protein serine/threonine kinase activity

Biological Process: BMP signaling pathway; immune response; negative regulation of smooth muscle cell migration; positive regulation of bone mineralization; positive regulation of cardiac muscle cell proliferation; positive regulation of osteoblast differentiation; positive regulation of transcription from RNA polymerase II promoter; protein amino acid phosphorylation; regulation of cardiac muscle cell proliferation; transforming growth factor beta receptor signaling pathway

Disease: Juvenile Polyposis Syndrome; Polyposis Syndrome, Hereditary Mixed, 2