1.1.1.267	Ca2+	activates, a divalent cation is required for activity, can partially substitute for Mn2+	676660	
1.1.1.267	Co2+	activates, a divalent cation is required for activity, can partially substitute for Mn2+	676660	
1.1.1.267	Co2+	can partially substitute for Mg2+ or Mn2+	724543, 725564	
1.1.1.267	Co2+	required for activity	286427, 286428	
1.1.1.267	Co2+	required, Km-value 0.001 mM	654877	
1.1.1.267	Co2+	required, Km-value 0.0012 mM	654748	
1.1.1.267	Mg2+	-	697335	
1.1.1.267	Mg2+	a divalent cation is absolutely required, optimal at 10 mM, the enzyme prefers Mn2+ or Mg2+	673562	
1.1.1.267	Mg2+	a divalent metal ion is absolutely required for activity, involved in catalysis	672538	
1.1.1.267	Mg2+	absolutely dependent on, optimal at 4 mM	674260