Immunogen sequence: MVAGTRCLLA LLLPQVLLGG AAGLVPELGR RKFAAASSGR PSSQPSDEVL SEFELRLLSM FGLKQRPTPS RDAVVPPYML DLYRRHSGQP GSPAPDHRLE. Bone Morphogenic Proteins (BMP) are members of the TGF-beta superfamily that affect bone and cartilage formation (Hogan 199