Reactions involving the carbon--nitrogen bond: heterocyclic compounds.
D002244:Carbon; D004798:Enzymes / Q000378:metabolism*; D006571:Heterocyclic Compounds / Q000378:metabolism*; D009584:Nitrogen
D004798:Enzymes; D006571:Heterocyclic Compounds; D002244:Carbon; D009584:Nitrogen
ENZYMES/metabolism; HETEROCYCLIC COMPOUNDS/metabolism