SPP-1, SPP1, BNSP, OPN, PSEC0156, BNSP, Bone sialoprotein 1, BSP I, BSPI, Early T lymphocyte activation 1, ETA 1, ETA1, MGC110940, Nephropontin, OPN, Osteopontin, osteopontin/immunoglobulin alpha 1 heavy chain constant region fusion protein, OSTP, PSEC01
Osteopontin (OPN), also designated bone sialoprotein 1, urinary stone protein, spp-1, Eta-1, nephropontin and uropontin, is an extracellular matrix cell adhesion phosphoglycoprotein. OPN is deposited into unmineralized matrix prior to calcification leadi