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Substance Name: Oprin
RN: 137540-00-2


  • Inhibits snake venom metalloproteinases; has 36% homology with human alpha(1)B glycoprotein.
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Names and Synonyms

Name of Substance

  • Oprin


  • Metalloproteinase inhibitor, opossum
  • Opossum proteinase inhibitor

Systematic Name

  • Glycoprotein alpha1B (Didelphis virginiana fragment protein moiety reduced)

Registry Numbers

CAS Registry Number

  • 137540-00-2

System Generated Number

  • 0137540002