1.12.99.6	4Fe-4S-center	contains two [4Fe-4S] clusters	684463	
1.12.99.6	FAD	-	743732	
1.12.99.6	FAD	0.83 mol FAD per enzyme	439641	
1.12.99.6	Fe-S center	the enzyme contains three FeS clusters: a distal [4Fe-4S]2+/1+ center, a medial [3Fe-4S]1+/0 center and a proximal [4Fe-3S]5+/4+ center	764975	
1.12.99.6	FMN	-	439647	
1.12.99.6	heme b	involved in electron transport	659355	
1.12.99.6	iron-sulfur center	-	742788	
1.12.99.6	iron-sulfur centre	contains a mononuclear iron coordinated by the sulfur of cysteine 176, the iron center is the catalytically active constituent of an iron guanylyl pyridone cofactor	690060	
1.12.99.6	iron-sulfur centre	contains one [2Fe-2S] and three [4Fe-4S] clusters	687302	
1.12.99.6	iron-sulfur centre	data from crystal structure	726038