1.17.4.4 Biosynthesis of secondary metabolites - 01110 - 1.17.4.4 Metabolic pathways - 01100 - 1.17.4.4 Ubiquinone and other terpenoid-quinone biosynthesis - 00130 - 1.17.4.4 vitamin K-epoxide cycle - - PWY-7999 1.17.4.4 vitamin K-epoxide cycle vitamin K-epoxide cycle - -