CAS 720710-69-0: L-Argininamide,N2-[(7-methoxy-2-oxo-2H-1-benzopyran-4-yl)acetyl]-L-lysyl-L-prolyl-L-leucylglycyl-L-leucyl-3-[(2,4-dinitrophenyl)amino]-L-alanyl-L-alanyl-(9CI)

Mca-Lys-Pro-Leu-Gly-Leu-Dap(Dnp)-Ala-Arg-NH2 (FS-6) is a quenched, fluorescent MMP peptide substrate designed for the real-time quantification of MMP enzymatic

The N-terminal elongation of the widely used MMP FRET substrate Mca-PLGL-Dpa-AR-NH₂ with a Lys yields a fluorogenic peptide with improved substrate properties. As compared to Mca-PLGL-Dpa-AR-NH₂, the specificity constant (kcat/Km) of the broad-spectrum MMP-substrate Mca-KPLGL-Dpa-AR-NH₂ for collagenases (MMP-1, MMP-8, MMP-13) and MMP-14 is increased two- to ninefold and threefold, respectively, while those for gelatinases and matrilysin remain equally high.

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MOCAc-Lys-Pro-Leu-Gly-Leu-Dap(Dnp)-Ala-Arg-NH2 is a peptide that has been shown to inhibit the activity of ADAM17. It blocks the cleavage of proMMP1, MMP2, and MMP9 and inhibits collagenase, stromelysin, and cathepsin activities. This peptide may be useful for the prevention and treatment of diseases associated with excessive proteolytic activity such as arthritis or cancer.