4.2.1.49	NAD+	-	5757, 5761, 5762, 5767, 5768, 5769, 5771	
4.2.1.49	NAD+	each monomer of urocanase contains one molecule of tightly bound NAD+, which is required for its activity	730335	
4.2.1.49	NAD+	full enzyme activity requires NAD+ in both subunits	5773	
4.2.1.49	NAD+	tightly bound cofactor	666027	
4.2.1.49	NAD+	tightly enzyme-bound	5754, 5756, 5759, 5760, 5770, 5772, 5775, 5776, 5777