1.3.98.3 3,8-divinyl-chlorophyllide a biosynthesis II (anaerobic) - - PWY-5531 1.3.98.3 Biosynthesis of secondary metabolites - 01110 - 1.3.98.3 heme b biosynthesis II (oxygen-independent) - - HEMESYN2-PWY 1.3.98.3 heme metabolism heme metabolism - - 1.3.98.3 Metabolic pathways - 01100 - 1.3.98.3 Porphyrin and chlorophyll metabolism - 00860 -