2.7.1.73	K+	increases activity, optimum concentration: 40 mM	
2.7.1.73	K+	the enzyme requires both Mg2+ and K+	
2.7.1.73	Mg2+	reaction is dependent on presence of divalent cation	
2.7.1.73	Mg2+	enzyme requires both Mg2+ and K+	
2.7.1.73	Mg2+	required, optimal concentration: 5 mM	
2.7.1.73	Mn2+	can partially replace Mg2+ in activation