2.7.1.56	Co2+	3 mM, 80% of activity with Mn2+	641681	
2.7.1.56	Co2+	5 mM, 25% of activity with Mg2+	641683	
2.7.1.56	CsCl	stimulates	727057	
2.7.1.56	Fe2+	3 mM, 50% of activity with Mn2+	641681	
2.7.1.56	K+	30-50 mM, 2.3fold activation	641685	
2.7.1.56	K+	40 mM, 3fold increase of activity	641680	
2.7.1.56	K+	50 mM, 3fold increase of maximal activity	641686	
2.7.1.56	K+	activation at 30 mM, inhibiton at 300 mM	640495	
2.7.1.56	K+	the enzyme shows the highest activity at about 0.5M KCl	722543	
2.7.1.56	KCl	stimulates, optimal concentration: 1.2 M	727057