Tags: Protein.
Not to be confused with Osteocalcin Osteonectin or Osteoprotegerin (OPG).Osteopontin (OPN) also known as bone sialoprotein I (BSP-1 or BNSP) early T-lymphocyte activation (ETA-1) secreted phosphoprotein 1 (SPP1) 2ar and Rickettsia resistance (Ric) is a human gene product which is also conserved in other species.
