6.3.2.49	Mg2+	-	690733, 693286, 733219	
6.3.2.49	Mg2+	Mg2+ or Mn2+ is essential for activity	662037	
6.3.2.49	Mg2+	required	726581, 726743	
6.3.2.49	Mg2+	required for enzyme activity	702768	
6.3.2.49	Mn2+	Mg2+ or Mn2+ is essential for activity	662037