Biological Activity
The activity was measured by its ability to cleave fluorogenic peptide substrate, Mca-KPLGL-Dpa-AR-NH2, The specific activity is >400 pmoles/min/µg.Recombinant Human MMP-1 protein pro form needs to be activated with p-aminophenylmercuric acetate (APMA).Activation Protocol:1. Dilute MMP1 to 50µg/ml in the Assay Buffer: 50mM Tris, 10mM CaCl2, 150mM NaCl, 0.05% (w/v) and Brij 35, pH 7.5.2. Activate MMP1 by adding APMA to a final concentration of 1mM. (Sigma, Catalog # A9563) and 100mM stock in DMSO.3. Incubate at 37°C for 2 hours.
