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Substance Name: Proteasome inhibitor I
RN: 158442-41-2


  • Inhibits chymotrypsin activity of the proteasome.

Classification Codes

  • Cysteine Proteinase Inhibitors
  • Enzyme Inhibitors
  • Protease Inhibitors
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Names and Synonyms

Results Name

  • Proteasome inhibitor I

Name of Substance

  • Benzyloxycarbonyl-isoleucyl-glutamyl(O-tert-butyl)-alanyl-leucinal


  • Proteasome inhibitor I
  • PSI
  • PSI peptide

Registry Numbers

CAS Registry Number

  • 158442-41-2

Other Registry Number

  • 916041-38-8

System Generated Number

  • 0158442412