3.2.1.142 Ca2+ activates 731101 3.2.1.142 Ca2+ contains Ca2+ 715920 3.2.1.142 Ca2+ required 731126 3.2.1.142 Co2+ 5 mM, 198% of initial activity 738951 3.2.1.142 Fe2+ 5 mM, 121% of initial activity 738951 3.2.1.142 K+ 2 mM, 132% of initial activtiy 737518 3.2.1.142 Mg2+ 2 mM, 122% of initial activtiy 737518 3.2.1.142 Mg2+ activates 731101 3.2.1.142 Mn2+ 5 mM, 136% of initial activity 738951 3.2.1.142 Mn2+ activates 731101