All
 D08 Enzymes and Coenzymes D045762 +
 D08.811 Enzymes D004798 +
 D08.811.464 Ligases D008025 +
 D08.811.464.259 Carbon-Nitrogen Ligases D019731 +
 D08.811.464.259.100 Adenylosuccinate Synthase D000265 
 D08.811.464.259.300 Argininosuccinate Synthase D001124 
 D08.811.464.259.350 Carbamoyl-Phosphate Synthase (Ammonia) D002222 
 D08.811.464.259.550 Formate-Tetrahydrofolate Ligase D005574 
 D08.811.464.259.850 Peptide Synthases D010453 +
 D08.811.464.259.200 Amide Synthases D019732 +
 D08.811.464.259.400 Carbon-Nitrogen Ligases with Glutamine as Amide-N-Donor D019733 +