1.2.1.31 Co2+ stimulates 288192 1.2.1.31 Cu2+ inhibits 288192 1.2.1.31 Cu2+ stimulates 288186 1.2.1.31 Mg2+ absolue requiremnt, optimal concentration: 10 mM 656194 1.2.1.31 Mg2+ required for activity 288185, 288189, 288192 1.2.1.31 Mg2+ stimulates 288186, 288192 1.2.1.31 Mn2+ optimal concentration: 5 mM, 60% of the maximal activity attained with Mg2+ 656194 1.2.1.31 Mn2+ stimulates 288186, 288192 1.2.1.31 additional information no metal cofactor required 288194, 288195