3.2.1.50 Cu2+ 82% inhibition by 1 mM CuSO4 208687 3.2.1.50 Cu2+ complete inhibition at 10 mM 208680 3.2.1.50 Fe3+ 76% inhibition by 1 mM ferric chloride 208687 3.2.1.50 Hg2+ complete inactivation at 20 mM HgCl2 208684 3.2.1.50 Hg2+ complete inhibition at 0.0015 mM 208693 3.2.1.50 Hg2+ complete inhibition at 10 mM 208680 3.2.1.50 additional information Ca2+, Mg2+, Zn2+, Mn2+, Ni2+, and Co2+, do not affect enzyme activity at 5 mM 749725