Pathway evidence report for folic acid biosynthesis pathway. The pathway glyph shows reactions with enzyme present in the genome and unique to the pathway (green), reactions with enzyme present but nonunique (present in other pathways—orange), reactions with enzyme absent and unique to the pathway (black), reactions with enzyme absent and present in other pathways (blue), and spontaneous reactions (pink). In this example, of the total of 15 reactions that make up the pathway, 10 have enzyme present, and only two of these participate in other pathways. The other pathways are listed at right.