1.7.1.2	cytochrome b557	1 mol per mol of enzyme	208103	
1.7.1.2	cytochrome b557	1 molecule per subunit	208086	
1.7.1.2	cytochrome b557	4 mol per mol of enzyme	208103	
1.7.1.2	cytochrome b557	contains cytochrome b557	208084, 208086, 208095	
1.7.1.2	FAD	-	676409	
1.7.1.2	FAD	activation	208087	
1.7.1.2	FAD	complete reduction of cytochrome by NADPH takes place only when added FAD is present in the enzyme preparation before addition of NADPH	208095	
1.7.1.2	FAD	enzyme contains 4 molecules of FAD	208101	
1.7.1.2	FAD	essential for NAD(P)H-dependent activity	208100	
1.7.1.2	FAD	maximum activity requires addition of flavin nucleotides, FAD more effective than FMN	208084	
1.7.1.2	FAD	prosthetic group	208100	
1.7.1.2	FAD	structure of FAD binding site	208099	
1.7.1.2	FMN	activation	208087	
1.7.1.2	FMN	maximum activity requires addition of flavin nucleotides, FAD is more effective than FMN	208084	
1.7.1.2	heme	enzyme contains 4 heme groups	208101	
1.7.1.2	heme	minimum of 4 molecules of heme per molecule of native enzyme	208102	
1.7.1.2	NAD(P)H	-	672297, 676409	
1.7.1.2	NAD(P)H	the enzyme is specific in relation to NADH as well as to NADPH although it shows lower specific activity in the presence of NADPH	697599	
1.7.1.2	NADH	-	208090	
1.7.1.2	NADH	at high nitrate concentration: more active with NADPH	208095	
1.7.1.2	NADH	at low nitrate concentration: more active with NADH	208095	
1.7.1.2	NADH	NADPH to NADH activity ratio is 1.8	208102	
1.7.1.2	NADH	preincubation with NAD(P)H and CN- causes inactivation, preincubation with NAD(P)H activates	208084	
1.7.1.2	NADH	utilizes both NADH and NADPH, more active with NADH	208084, 208086, 208087	
1.7.1.2	NADPH	-	208090, 658464, 658564	
1.7.1.2	NADPH	at high nitrate concentration: more active with NADPH	208095	
1.7.1.2	NADPH	at low nitrate concentration: more active with NADH	208095	
1.7.1.2	NADPH	NADPH to NADH activity ratio is 1.8	208102	
1.7.1.2	NADPH	preincubation with NAD(P)H and CN- causes inactivation, preincubation with NAD(P)H alone activates	208084	
1.7.1.2	NADPH	utilizes both NADH and NADPH, more active with NADH	208084, 208086, 208087