Ac-IEPD-pNA White lyophilized solid. PROTECT FROM LIGHT. PACKAGED UNDER INERT GAS. A colorimetric substrate for granzyme B (kcat/Km = 6.6 x 104 M-1s-1). Cleavage of pNA is monitored colorimetrically at ~405 nm (e = 9,160 M-1cm-1). Purity: ≥95% by HPLC. Ac-Ile-Glu-Pro-Asp-pNA Ref.: Harris, J.L., et al. 1998. J. Biol. Chem. 273, 27364. Thornberry, N.A., et al. 1997. J. Biol. Chem. 272, 17907. |