1.9.6.1	4Fe-4S-center	the 90 kDa NapA subunit contains a one [4Fe-4S] iron-sulfur cluster	712967	
1.9.6.1	bis(molybdopterin guanine dinucleotide)molybdenum cofactor	NapA contains a molybdo-bis(molybdopterin guanine dinucleotide) cofactor	674891	
1.9.6.1	bis(molybdopterin guanine dinucleotide)molybdenum cofactor	subunit NapA is an 90000 Da catalytic subunit which binds a bis-molybdenum guanosine dinucleoside cofactor and a [4Fe4S] cluster	654561	
1.9.6.1	cytochrome	NapG and NapH form a quinol dehydrogenase that couples electron transfer from the high midpoint redox potential ubiquinone-ubiquinol couple via cytochrome NapC and NapB to NapA	696082	
1.9.6.1	cytochrome	presence of a bound cytochrome	395176	
1.9.6.1	cytochrome	the membrane-bound cytochrome NapC is essential for electron transfer from both ubiquinol and menaquinol to NapAB	700256	
1.9.6.1	cytochrome c	-	741478, 742319, 742645, 742648	
1.9.6.1	cytochrome c	di-heme cytochrome c redox partner, NapB	742486	
1.9.6.1	cytochrome c	i.e. NapB, contains two c-type hemes and is assembled and secreted into the periplasm by the Ccm (cytochrome c maturation) machinery independently from enzyme NapA. Once in the periplasm they form the heterodimer NapAB	742319	
1.9.6.1	cytochrome c	two surface-exposed c-type hemes, NapB	741958