4.2.99.20 2-carboxy-1,4-naphthoquinol biosynthesis - - PWY-5837 4.2.99.20 Biosynthesis of secondary metabolites - 01110 - 4.2.99.20 Metabolic pathways - 01100 - 4.2.99.20 Ubiquinone and other terpenoid-quinone biosynthesis - 00130 - 4.2.99.20 vitamin K metabolism vitamin K metabolism - -