1.2.1.38 Arginine biosynthesis - 00220 - 1.2.1.38 arginine metabolism arginine metabolism - - 1.2.1.38 Biosynthesis of secondary metabolites - 01110 - 1.2.1.38 L-arginine biosynthesis II (acetyl cycle) - - ARGSYNBSUB-PWY 1.2.1.38 L-arginine biosynthesis III (via N-acetyl-L-citrulline) - - PWY-5154 1.2.1.38 L-ornithine biosynthesis I - - GLUTORN-PWY 1.2.1.38 Metabolic pathways - 01100 -