6.1.1.7	Co2+	or Mg2+ required	517	
6.1.1.7	KCl	optimum concentration: 50-100 mM	525	
6.1.1.7	Mg2+	-	671126, 675395, 676064, 677045	
6.1.1.7	Mg2+	6-16 mM	525	
6.1.1.7	Mg2+	optimum: 5-10 mM	156	
6.1.1.7	Mg2+	or Co2+ required	517	
6.1.1.7	Mg2+	required	649960, 650000, 714234, 745185	
6.1.1.7	Zinc	thightly bound	515	
6.1.1.7	Zn2+	active site bound by His9, His13, His120, and Cys116, involved in the catalytic reaction	677045	
6.1.1.7	Zn2+	potential role of the coordinated zinc in editing substrate specificity	714234	
6.1.1.7	Zn2+	removal of Zn2+ leads to over 50% reduced activity, required for conformational stability and flexibility important for the enzymes activity	649422