6.3.4.16	Co2+	activates	1467	
6.3.4.16	Co2+	divalent metal ion required, Mg2+, Mn2+ or Co2+, Km for CoATP2-: 2.2 mM	1460	
6.3.4.16	Cs+	monovalent cation required, ATP hydrolysis is activated in the order of the series: Tl+, Cs+, Rb+, K+, Na+. Half-maximal activation at 1-2 mM	1448	
6.3.4.16	K+	monovalent cation required, ATP hydrolysis is activated in the order of the series: Tl+, Cs+, Rb+, K+, Na+. Half-maximal activation at 1-2 mM	1448	
6.3.4.16	Mg2+	-	691725, 693247, 693489, 693935, 702101, 702142	
6.3.4.16	Mg2+	divalent metal ion required, Mg2+, Mn2+ or Co2+, Km for MgATP2-: 1.35 mM	1460	
6.3.4.16	Mg2+	free Mg2+ required for maximal activity	1474	
6.3.4.16	Mg2+	Mg2+ and Mn2+ are equally effective activators in the direction of carbamoyl phosphate synthesis, Km: 0.17 mM	1467	
6.3.4.16	Mg2+	requirement for free Mg2+ in addition to the MgATP2- complex, inhibits above 20 mM	1464	
6.3.4.16	Mn2+	can substitute for Mg2+ in activation, more effective on a molar basis, free Mn2+ at 5 mM and above inhibits	1464