1.8.2.1	cytochrome c	-	669353, 710857, 711780, 764491, 764725, 765785	
1.8.2.1	cytochrome c	c-type cytochrome SorU, i.e. Smc04048	743146	
1.8.2.1	cytochrome c-551	intimately associated with the enzyme	394072	
1.8.2.1	cytochrome c-551	MW 23000 Da, necessary for the enzyme as an integral part	394083	
1.8.2.1	cytochrome c550	-	394076	
1.8.2.1	cytochrome c550	enzyme reacts exclusively with cytochrome c550	394085	
1.8.2.1	FAD	enzyme covalently binds one FAD	724587	
1.8.2.1	heme	-	394087, 658970, 710857, 711242, 711780, 712157, 764725	
1.8.2.1	heme	0.91 heme c per holoenzyme	658705	
1.8.2.1	heme	contains b-type heme	711223