N-Acetyl-Ile-Glu-Pro-Asp-p-nitroanilide

• CAT Number: I040417
• CAS Number: 216757-29-8
• Molecular Formula: C28H38N6O11
• Molecular Weight: 634.63
• Purity: ≥95%
• Synonyms: (4S)-4-[[(2S,3S)-2-acetamido-3-methylpentanoyl]amino]-5-[(2S)-2-[[(2S)-3-carboxy-1-(4-nitroanilino)-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-5-oxopentanoic acid
• InChI: InChI=1S/C28H38N6O11/c1-4-15(2)24(29-16(3)35)27(42)31-19(11-12-22(36)37)28(43)33-13-5-6-21(33)26(41)32-20(14-23(38)39)25(40)30-17-7-9-18(10-8-17)34(44)45/h7-10,15,19-21,24H,4-6,11-14H2,1-3H3,(H,29,35)(H,30,40)(H,31,42)(H,32,41)(H,36,37)(H,38,39)/t15-,19-,20-,21-,24-/m0/s1
• InChIKey: YXEIIOVAGGAMCZ-NYMCBPKFSA-N
• SMILES: CCC(C)C(C(=O)NC(CCC(=O)O)C(=O)N1CCCC1C(=O)NC(CC(=O)O)C(=O)NC2=CC=C(C=C2)[N+](=O)[O-])NC(=O)C

N-Acetyl-Ile-Glu-Pro-Asp-p-nitroanilide (Ac-IEPD-pNA) is a granzyme B substrate that allows accurate measurement of granzyme B activity[1].

Reference

[1]. Kristina Fritsch, et al. Suppression of granzyme B activity and caspase-3 activation in leukaemia cells constitutively expressing the protease inhibitor 9. Ann Hematol. 2013 Dec;92(12):1603-9.
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