3.4.23.18	Ca2+	182.6% activity at 10 mM	752341	
3.4.23.18	Ca2+	slight activation at 10 mM	753450	
3.4.23.18	Co2+	121.1% activity at 10 mM	752341	
3.4.23.18	Cu2+	151.2% activity at 10 mM	753450	
3.4.23.18	Mg2+	152.2% activity at 10 mM	752341	
3.4.23.18	Mg2+	slight activation at 10 mM	753450	
3.4.23.18	Mn2+	140.1% activity at 10 mM	753450	
3.4.23.18	additional information	Fe2+ and Zn2+ have negligible effect on the enzyme activity	753450	
3.4.23.18	additional information	no activation by HgCl2, NaF, FeCl3, FeCl2, CoCl2, MgCl2, CaCl2, ZnSO4	30569	
3.4.23.18	additional information	no metal ion required	30564