1.1.1.262	Zn2+	divalent metal ion-dependent enzyme, Zn2+ is bound to the active site of each monomer coordinated by 3 histidine residues from both monomer	656172	
1.1.1.262	Zn2+	tightly bound, divalent metal ion-dependent enzyme, Zn2+ can be replaced by e.g. Mg2+	654972