6.3.3.4	(carboxyethyl)arginine beta-lactam-synthase	-	
6.3.4.25	2-amino-2'-deoxyadenylo-succinate synthase	-	
6.3.2.55	2-[(L-alanin-3-ylcarbamoyl)methyl]-3-(2-aminoethylcarbamoyl)-2-hydroxypropanoate synthase	-	
6.3.2.B23	3-formyl-tyrosine ligase	preliminary BRENDA-supplied EC number	
6.3.2.59	3-methyl-D-ornithine---L-lysine ligase	-	
6.3.2.B15	3-[[[(2R,3R)-3-carboxyoxiran-2-yl]carbonyl]amino]-L-alanine-L-valine ligase	preliminary BRENDA-supplied EC number	
6.3.1.7	4-methyleneglutamate-ammonia ligase	-	
6.3.2.36	4-phosphopantoate-beta-alanine ligase	-	
6.3.4.18	5-(carboxyamino)imidazole ribonucleotide synthase	-	
6.3.3.2	5-formyltetrahydrofolate cyclo-ligase	-