3.5.5.6 p-hydroxymercuribenzoate 0.0005 mM, 2.5% of maximal activity 98 3.5.5.6 Phenylmercuriacetate 0.0005 mM, 4.3% of maximal activity 3487 3.5.5.6 Cu2+ 0.01 mM, 75% of maximal activity, 0.1 mM: 31.3% of maximal activity 19 3.5.5.6 Ag+ 0.01 mM, 93.8% of maximum activity, 0.1 mM: 2.5% of maximal activity 75 3.5.5.6 iodoacetate 0.01 mM: 5% of maximal activity 93 3.5.5.6 additional information Ca2+, Co2+, Mg2+, Mn2+, Zn2+ at 0.1 mM, as well as EDTA or HCN, or monovalent cations at 500 mM are no inhibitors 2