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Biochem Biophys Res Commun. 1994 Dec 30;205(3):1944-51.

A mammalian serine/threonine kinase receptor specifically binds BMP-2 and BMP-4.

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  • 1Yamanouchi Pharmaceutical Co., Ltd., Tokyo, Japan.


Bone morphogenetic proteins (BMPs) are a class of related growth and differentiation factors within the TGF-beta superfamily of proteins which are known to induce cartilage and bone formation in adult animals and to be involved in many inductive events throughout embryonic development. Here we describe the molecular cloning and characterization of a mammalian receptor, CFK-43a, which specifically binds BMP-2 and BMP-4. This molecule is a member of the serine/threonine kinase receptor family which includes receptors for other TGF-beta superfamily members. CFK-43a binds other BMP family members with lower affinity, but does not bind TGF-beta. During embryogenesis, in situ hybridization analysis indicates that CFK-43a mRNA is localized in developing skeletal tissues in a complementary fashion to the transcripts for its ligands.

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