2.1.1.13	Co2+	-	441203	
2.1.1.13	Cu	1:1 stoichiometry with Co	441182	
2.1.1.13	Mg2+	activates	441179, 441185	
2.1.1.13	Mg2+	required	441172, 441174	
2.1.1.13	additional information	no other metals except for Co	441203	
2.1.1.13	Zn2+	0.9 equiv. of zinc per mole, removal results in inactive enzyme	441209	
2.1.1.13	Zn2+	characterization of zinc site	441218	
2.1.1.13	Zn2+	zinc is coordinated by Cys-207, Cys-272, and Cys-273	706493