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Substance Name: Osteopontin
RN: 106441-73-0


  • A negatively-charged extracellular matrix protein that plays a role in the regulation of BONE metabolism and a variety of other biological functions. Cell signaling by osteopontin may occur through a cell adhesion sequence that recognizes INTEGRIN ALPHA-V BETA-3.
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Names and Synonyms

Name of Substance

  • Osteopontin

MeSH Heading

  • Osteopontin


  • 2ar Peptide
  • 44 Kda phosphoprotein
  • Bone sialoprotein 1
  • Bone sialoprotein I
  • Early T-lympocyte activation-1 protein
  • Eta-1 protein
  • Eta-1-Op gene product
  • Eta-1-Op protein
  • Phosphoprotein I, 2aR
  • Secreted phosphoprotein 1
  • Sialoprotein 1
  • Urinary stone protein

Systematic Name

  • Osteopontin (rat clone lambda ROP11 protein moiety)

Registry Numbers

CAS Registry Number

  • 106441-73-0

System Generated Number

  • 0106441730