6.4.1.2	Ca2+	can partially replace for Mg2+	651169	
6.4.1.2	Co2+	26% of the maximum activity is observed when Co2+ (10 to 15 mM) is used as a divalent cation	725234	
6.4.1.2	Co2+	can partially replace for Mg2+	651169	
6.4.1.2	Cs+	dependent on	662786	
6.4.1.2	Cs+	greater activation at 1 mM HCO3- than at 10 mM HCO3-	37576	
6.4.1.2	Cs+	small activating effect, depends on the degree of saturation of the reaction by HCO3-	37577	
6.4.1.2	Cu2+	inhibitory for forward reaction, stimulates reverse reaaction	653435	
6.4.1.2	Fe2+	stimulates activity	653435	
6.4.1.2	Fe3+	stimulates activity	653435	
6.4.1.2	K+	activates	37578