1.13.99.1	Fe2+	1 mM	671152, 676819	
1.13.99.1	Fe2+	1 mM Fe(II) + 4 mM quinolinate activate to 70% of the Fe(II)/cysteine system, Fe(II) alone causes very little activation, quinolinate gives considerable activation in absence of Fe(II), activation by Fe(II) and quinolinate is very temperature dependent	6866	
1.13.99.1	Fe2+	1 mM Fe(II) and 2 mM cysteine	6866, 6874	
1.13.99.1	Fe2+	1 mM Fe2+ plus 2mM cysteine required	172313	
1.13.99.1	Fe2+	2 mM used in assay conditions	764595	
1.13.99.1	Fe2+	best activation system	6866	
1.13.99.1	Fe2+	contains iron most probably in divalent form, enzyme consisting of 16 subunits contains 8 iron atoms per molecule	6870	
1.13.99.1	Fe2+	either reagent alone gives very little activation	6874	
1.13.99.1	Fe2+	iron protein	6869, 6870	
1.13.99.1	Fe2+	less active preparations: 1.5 atoms of iron per molecule	6869