2.5.1.112 Mg2+ the enzyme is dependent on presence of divalent cation, and addition of 2 mM MnCl2 is 1.3times more effective than that of 10 mM MgCl2 671796 2.5.1.112 Mn2+ the enzyme is dependent on presence of divalent cation, and addition of 2 mM MnCl2 is 1.3times more effective than that of 10 mM MgCl2 671796