LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Bone morphogenetic protein complex, molecular model. Bone Morphogenetic Protein-7 (BMP-7, pink) in complex with the secreted antagonist Noggin (green). Protein interactions like this regulate the formation of bone and cartilage tissue, though the BMP signalling system is now thought to influence tissue structure throughout the body. When this signalling system goes wrong, it can result in cancers forming. BMP-7 functions include kidney repair and development. Noggin acts to inhibit the effects of several BMPs, including BMP-7.
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