Calpain Inhibitor I

A cell-permeable inhibitor of calpain I, calpain II, cathepsin B, and cathepsin L..

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Calpain Inhibitor I 25 mg

Calpain Inhibitor I 5 mg

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A cell-permeable inhibitor of calpain I (Ki = 190 nM), calpain II (Ki = 220 nM), cathepsin B (Ki = 150 nM), and cathepsin L (Ki = 0.5 nM). Inhibits neutral cysteine proteases and the proteasome (Ki = 6 μM). Can initiate apoptosis in HL-60 cells but blocks dexamethasone-induced apoptosis in thymocytes and cycloheximide-induced apoptosis in metamyelocytes. Inhibits cyclin B degradation and arrests the cell cycle at G1/S and at meta-/anaphase.