1.17.4.2	5'-deoxyadenosylcobalamin	class II enzymes	715085	
1.17.4.2	5,6-dimethylbenzimidazolycobamide	-	437888	
1.17.4.2	adenosylcobalamin	-	714185, 714186	
1.17.4.2	adenosylcobalamin	in the course of catalysis, the protein active site presents the reacting molecules with an environment that includes a hydrogen bond to the thiyl radical and intervening residues or solvent mediating an exchange coupling between the thiyl radical and cob(II)alamin	728091	
1.17.4.2	Coalpha-(aden-9-yl)-Cobeta-adenosylcobamide	-	437892	
1.17.4.2	Coalpha-(benzimidazolyl)-Cobeta-adenosylcobamide	-	437892	
1.17.4.2	Cobalamin	class II enzymes	715085	
1.17.4.2	coenzyme B12	-	437888, 437890, 437895, 437897, 437898, 437899	
1.17.4.2	coenzyme B12	adenosylcobalamin	437889, 437892, 437893, 437894, 437896, 437897, 437899, 437900, 437901, 437902, 437903	
1.17.4.2	coenzyme B12	required	681889	
1.17.4.2	dihydrolipoate	-	437888	
1.17.4.2	additional information	cofactor specificity and binding, role in reaction, overview	715085	
1.17.4.2	additional information	the class III enzymes contain 4Fe-4S clusters in the small beta-subunit. Cofactor specificity and binding, role in reaction, overview	715085	
1.17.4.2	NADPH	can utilize NADPH as hydrogen donor for ribonucleotide reduction	437891	
1.17.4.2	S-adenosyl-L-methionine	-	715085	
1.17.4.2	thioredoxin	-	688750, 715085	
1.17.4.2	thioredoxin	class II enzymes	715085