3.4.11.25 additional information no inhibition: EDTA (0.1 mM, 1 mM and 10 mM), leupeptin (0.01 mM, 0.1 mM and 1 mM), phenylmethanesulfonyl fluoride (1 mM and 10 mM), bestatin (0.01 mM and 0.1 mM), and 1,10-phenanthroline (1 mM and 10 mM) 2 3.4.11.25 additional information no inhibitory effects are observed when the enzyme assay is performed in the presence of 1 mM of EDTA, CaCl2, MgCl2, ZnCl2, CoCl2, FeCl2, MnCl2, CuCl2, beta-mercaptoethanol, 1,4-dithio-DL-threitol, or phenylmethylsulfonyl fluoride 2 3.4.11.25 Pefabloc SC 0.4 mM and 4 mM, complete inhibition of hydrolysis of beta-homoVal-beta-homoAla-beta-homoLeu 5680