Product name : Caspase_3 Substrate DEVD_AFC1000 assays
Catalog number : 1007-1000
Quantity: 1000 assays
Supplier name : Biovis
Data sheet : Ask more or other datasheet now !
STORAGE CONDITION: Store at –20oC, protected from light.
SHELF LIFE: 6 months under proper storage conditions
MOLECULAR WEIGHT: 729.0
SEQUENCE: Ac-Asp-Glu-Val-Asp-AFC (AFC, 7-amino-4-trifluoromethyl coumarin)
PURITY: >98% by HPLC analysis.
Ready-to-use fluorometric substrate for caspase-3/CPP32 (Km = 9.7 μM) and related caspases that recognize the amino acid sequence DEVD. The sequence DEVD is based on caspase-3 cleavage site in poly (ADP-ribose) polymerase (PARP). CPP32 and related caspase activity can be quantified by fluorescent detection of free AFC after cleaved from the peptide substrate DEVD-AFC at Ex. = 400 nm and Em. = 505 nm, using a fluorometer or a multi-well fluorescence plate reader. Alternatively, a shift in fluorescence from blue to green upon cleavage can be visualized using a hand-held long-UV lamp.
1. Induce apoptosis in cells by desired method. Concurrently incubate a control culture without induction.
2. Count cells and pellet 1-5 x 106 cells or use 50-200 μg cell lysates if protein concentration has been measured.
3. Resuspend cells in 50 μl of chilled Cell Lysis Buffer (Cat.# 1067-100).
4. Incubate cells on ice for 10 minutes.
5. Add 50 μl of 2X Reaction Buffer (Cat.# 1068-20, -80) containing 10 mM DTT (Cat.#1201-1) to each sample.
6. Add 5 μl of the 1 mM DEVD-AFC (50 μM final conc.) into each tube individually and incubate at 37oC for 1-2 hour.
7. Read samples in a fluorometer equipped with a 400-nm excitation filter and 505-nm emission filter. For a plate-reading set-up, transfer the samples to a 96-well plate. You may perform the entire assay directly in a 96-well plate.
8. Fold-increase in caspase-3 activity can be determined by comparing these results with the level of the uninduced control.
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