3.1.3.72	Ca2+	activates at a concentration equal to the substrate, but higher concentrations result in the precipitation of the substrate as calcium phytate and strongly inhibit enzyme activity	15	
3.1.3.72	Ca2+	at concentrations equimolar to the substrate: 313% activation, but inhibitory at higher concentrations	15	
3.1.3.72	Cu2+	-	19	
3.1.3.72	CuSO4	moderately inhibits phytase activity	263	
3.1.3.72	EDTA	-	21	
3.1.3.72	EDTA	at 1 mM inhibits the enzyme activity up to 90% and completely at 5 mM concentration	21	
3.1.3.72	EDTA	0.5 mM: 35% inhibition, 5 mM: 94% inhibition	21	
3.1.3.72	EDTA	5 mM, complete inhibition due to a dependence on Ca2+	21	
3.1.3.72	Fe2+	-	25	
3.1.3.72	Mg2+	-	6