5.1.3.7 Ca2+ stimulates 2411 5.1.3.7 Co2+ stimulates 2411 5.1.3.7 Mg2+ maximal stimulation at 2 mM 2417 5.1.3.7 Mg2+ slight inhibition above 0.1 mM 2417 5.1.3.7 Mg2+ stimulates 2411, 2417 5.1.3.7 Mn2+ stimulates 2411 5.1.3.7 additional information activity is independent of divalent metal 652005 5.1.3.7 additional information the enzyme is not specifically dependent on divalent metal ions for its catalytic activity, negligible effects by Co2+, Mn2+, Mg2+, Zn2+, Ca2+, Cu2+, Fe2+, or Ni2+ 746915