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Overview
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Background
Z-DEVD-AFC is a fluorometric substrate for caspase-3 (Km = 9.7µM) and other related caspases. The sequence DEVD is based on PARP cleavage at Asp216 for caspase-3. During apoptosis, caspase-3 cleaves the substrate and release AFC, thus the caspase activity can be calculated by the fluorescent detection of AFC at Ex. = 400 nm and Em. = 505 nm, or by a blue to green shift in fluorescence. Z-DEVD-AFC can be used to identify and quantify caspase-3 activity in apoptotic cell lysates.
1. Jiuru Sun.; Stephen P. Bottomley.; Sharad Kumar.; Phillip I. Bird. Recombinant Caspase-3 Expressed inPichia pastorisIs Fully Activated and Kinetically Indistinguishable from the Native Enzyme. Biochemical and Biophysical Research Communications. 1997, 238 (3), 920-924.
2. Kieran F. Harvey.; Natasha L. Harvey.; Julie M. Michael.; Gayathri Parasivam.; Nigel Waterhouse.; Emad S. Alnemri?.; Dianne Watters.; Sharad Kumar. Caspase-mediated Cleavage of the Ubiquitin-protein Ligase Nedd4 during Apoptosis. The Journal of Biological Chemistry. 1998, 273 13524-13530.
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Overview