Definitions for osteonectin
This page provides all possible meanings and translations of the word osteonectin
A protein that binds to hydroxyapatite to facilitate the mineralisation of collagen in bones.
Osteonectin also known as secreted protein acidic and rich in cysteine or basement-membrane protein 40 is a protein that in humans is encoded by the SPARC gene. Osteonectin is a glycoprotein in the bone that binds calcium. It is secreted by osteoblasts during bone formation, initiating mineralization and promoting mineral crystal formation. Osteonectin also shows affinity for collagen in addition to bone mineral calcium. A correlation between osteonectin over expression and ampullary cancers and chronic pancreatitis has been found.
U.S. National Library of Medicine
Non-collagenous, calcium-binding glycoprotein of developing bone. It links collagen to mineral in the bone matrix. In the synonym SPARC glycoprotein, the acronym stands for Secreted Protein, Acidic and Rich in Cysteine.
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