CathepsinD&EFluorogenicSubstrate原装正品,其它生化试剂

Quenched fluorogenic substrate for cathepsin D (kcat/Km=1.09 x 10 M-1s-1) and cathepsin E (kcat/Km=1.56 x 10 M-1s-1). Mca fluorescence is quenched by the Dnp group until cleavage separates them. Activity of the two enzymes on this substrate can be distinguished by the use of Ascaris pepsin inhibitor, which inhibits cathepsin E, but not cathepsin D. This substrate is also cleaved by MMP-2, MMP-3, MMP-9, but not MMP-1 nor MMP-13.
This substrate is useful for inhibitor screening and kinetic analysis. Ex.: 320-340 nm, Em.: 393-420 nm. Mca-Pro-Leu-OH (BML-P127) can be used to calibrate for Mca fluorescence.
Product Specification
MW: 1756.0
Purity: ≥95%
Sequence: Mca-Gly-Lys-Pro-Ile-Leu-Phe-Phe-Arg-Leu-Lys(Dnp)-D-Arg-NH2 [Mca= (7-methoxycoumarin-4-yl)acetyl; Dnp=dinitrophenyl]
Formulation: Lyophilized solid.
Solubility: Soluble in DMSO (1mM) or 50% acetic acid (1mg/ml).
Shipping: SHIPPED ON BLUE ICE
Long Term Storage: -20°C
Handling: Keep cool and dry.
Protect from light.
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