7.1.1.1	Ca2+	required for catalytic activity	392599	
7.1.1.1	Mg2+	required for catalytic activity	392599	
7.1.1.1	K+	strong activation at concentrations of approx. 100 mM	392598	
7.1.1.1	Mg2+	strong activation at concentrations of approx. 3-7 mM	392598	
7.1.1.1	Ca2+	strong activation at concentrations of approx. 7-8 mM	392598	
7.1.1.1	Ca2+	strong activation of forward reaction in the light at concentrations above 0.1 mM	392599	
7.1.1.1	Mg2+	strong activation of forward reaction, i.e. the reduction of NADP+ by NADH, in the light at concentrations above 0.1 mM	392599	
7.1.1.1	K+	strong activation of forward reaction, i.e. the reduction of NADP+ by NADH, in the light at concentrations of approx. 50-80 mM, half-maximal activation at 10 mM	392599	
7.1.1.1	Na+	strong activation of forward reaction, i.e. the reduction of NADP+ by NADH, in the light at concentrations of approx. 50-80 mM, half-maximal activation at 10 mM	392599