3.5.1.16 Arginine biosynthesis - 00220 - 3.5.1.16 arginine metabolism arginine metabolism - - 3.5.1.16 Biosynthesis of secondary metabolites - 01110 - 3.5.1.16 L-arginine biosynthesis III (via N-acetyl-L-citrulline) - - PWY-5154 3.5.1.16 L-ornithine biosynthesis I - - GLUTORN-PWY 3.5.1.16 Metabolic pathways - 01100 -