Ready-to-use colorimetric substrate for caspase-9/Mch6 and related caspases that recognize the amino acid sequence LEHD. Caspase-9 and related caspase activity can be quantified by spectrophotometric detection of free pNA (l = 400 nm) after cleavage from the peptide substrate LEHD-pNA, using a spectrophotometer or multi-well plate reader.
Sequence: Ac-Leu-Glu-His-Asp-pNA
Purity: (same/more than) 98% by HPLC analysis
Storage & Stability:
May be stored at 4 degrees C for short-term only. For long-term storage, aliquot to avoid repeated freezing and thawing and freeze at -20 degrees C. Aliquots are stable for a minimum of 6 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.