6.3.4.1	GMP synthase	transferred to EC 6.3.5.2	
6.3.4.10	biotin-[propionyl-CoA-carboxylase (ATP-hydrolysing)] ligase	-	
6.3.4.11	biotin-[methylcrotonoyl-CoA-carboxylase] ligase	-	
6.3.4.12	glutamate-methylamine ligase	-	
6.3.4.13	phosphoribosylamine-glycine ligase	-	
6.3.4.14	biotin carboxylase	-	
6.3.4.15	biotin-[biotin carboxyl-carrier protein] ligase	-	
6.3.4.16	carbamoyl-phosphate synthase (ammonia)	-	
6.3.4.17	formate-dihydrofolate ligase	-	
6.3.4.18	5-(carboxyamino)imidazole ribonucleotide synthase	-	
6.3.4.19	tRNAIle-lysidine synthase	-	
6.3.4.2	CTP synthase (glutamine hydrolysing)	-	
6.3.4.20	7-cyano-7-deazaguanine synthase	-	
6.3.4.21	nicotinate phosphoribosyltransferase	-	
6.3.4.22	tRNAIle2-agmatinylcytidine synthase	-	
6.3.4.23	formate-phosphoribosylaminoimidazolecarboxamide ligase	-	
6.3.4.24	tyramine-L-glutamate ligase	-	
6.3.4.25	2-amino-2'-deoxyadenylo-succinate synthase	-	
6.3.4.3	formate-tetrahydrofolate ligase	-	
6.3.4.4	adenylosuccinate synthase	-	
6.3.4.5	argininosuccinate synthase	-	
6.3.4.6	urea carboxylase	-	
6.3.4.7	ribose-5-phosphate-ammonia ligase	-	
6.3.4.8	imidazoleacetate-phosphoribosyldiphosphate ligase	-	
6.3.4.9	biotin-[methylmalonyl-CoA-carboxytransferase] ligase	-