1.2.1.54 Arginine and proline metabolism - 00330 1.2.1.54 arginine metabolism arginine metabolism - 1.2.1.54 L-arginine degradation IX (arginine:pyruvate transaminase pathway) - - 1.2.1.54 L-arginine degradation VIII (arginine oxidase pathway) - - 1.2.1.54 Metabolic pathways - 01100