3.6.1.22 Co2+ necessary for maximum activity 209951 3.6.1.22 Co2+ reactivation of EDTA-treated enzyme 209949 3.6.1.22 Co2+ slight activation 209957 3.6.1.22 Fe2+ slight activation 209957 3.6.1.22 Fe2+ the enzyme shows some activity on NADH in the presence of Fe2+ 720498 3.6.1.22 Mg2+ Mg2+ has highest stimulating effect 720498 3.6.1.22 Mg2+ slight activation at concentration of 1.0 mM 209949 3.6.1.22 Mg2+ strong activation 209957, 209959 3.6.1.22 Mg2+ strong activation at concentration of 0.4 mM 209951 3.6.1.22 Mn2+ Mn2+ has highest stimulating effect 720498 3.6.1.22 Mn2+ slight activation at concentration of 1.0 mM, reactivation of EDTA-treated enzyme 209949 3.6.1.22 Mn2+ strong activation 209957, 209959 3.6.1.22 Mn2+ strong activation at concentration of 0.4 mM 209951 3.6.1.22 Ni2+ strong activation at concentration of 0.4 mM 209951 3.6.1.22 Zn2+ slight activation 209957