1.14.13.5	FAD	1 mol per mol enzyme	390102, 390103, 390104, 390105, 390106	
1.14.13.5	FAD	cannot be replaced by FMN or riboflavin	390104, 390106	
1.14.13.5	FAD	FAD is the only prosthetic group	390102	
1.14.13.5	additional information	the enzyme contains 2 mol of titratable suflhydryl groups, one of which is essential, possibly as a substrate-binding site, for the oxygenation of imidazoleacetate	390105	
1.14.13.5	NADH	-	390101, 390102, 390103, 390104, 390105, 390106	
1.14.13.5	NADPH	alpha-NADH cannot replace beta-NADH at 0.2 mM	390104	
1.14.13.5	NADPH	beta-NADPH is approximately 13% as active as beta-NADH	390103, 390104	
1.14.13.5	NADPH	less efficient than NADH	390102, 390103