4.2.3.5	flavins	required, reduced forms e.g. FMN, FAD	137646, 137650, 137651, 137655, 137656, 137659, 137661, 137663, 137664, 137665, 137666	
4.2.3.5	FMN	-	679351, 679365, 681499, 715196	
4.2.3.5	FMN	cofactor	652056, 652121	
4.2.3.5	FMN	essential for catalytic activity	678265	
4.2.3.5	FMN	reduced form	691478	
4.2.3.5	FMN	reduced, the S16A/S127A double-mutant protein showy slightly weaker binding of the cofactor	692285	
4.2.3.5	FMN	required	682003	
4.2.3.5	FMNH2	absolute requirement	652559, 653564	
4.2.3.5	FMNH2	absolute requirement for FMNH2, which is not consumed during the reaction	652570	
4.2.3.5	FMNH2	absolute requirement, Km: 0.0048 mM	653564