1.14.19.1	Fe2+	specifically required	437643	
1.14.19.1	Fe2+	contains one atom of non-heme iron per enzyme molecule, catalytic function	437645, 437648, 437657	
1.14.19.1	Cu2+	-	437646	
1.14.19.1	Fe2+	-	437646, 437657, 714029, 714418	
1.14.19.1	Zn2+	-	437646	
1.14.19.1	Fe2+	20-25% stimulation	437650	
1.14.19.1	additional information	no special ion requirement	437650	
1.14.19.1	Zn2+	20-25% stimulation	437650	
1.14.19.1	Fe2+	iron-sulfur protein(s) may act as electron carrier(s) in place of the cytchrome b5 and NADH cytochrome b5 reductase system associated with the mammalian desaturase systems	437651	
1.14.19.1	superoxid dismutase	8% stimulation	437651