Metabolic map of virus-encoded carbon metabolism host genes from 12 viromes in sunlit Pacific Ocean waters. Red lines represent genes encoded in the photic zone. The width of the lines corresponds to the normalized read abundance as shown in the legend, and arrows correspond to the proposed flow through these pathways during viral infection. Enzymes are listed in red and compounds in black. (A) Virus-encoded host genes in glycolysis, fatty acid metabolism, the pentose phosphate pathway, and the Entner-Doudoroff pathway towards dNTP biosynthesis. (B) Virus-encoded host genes in glycolysis, fatty acid metabolism, the tricarboxylic acid (TCA) cycle, the electron transport chain, and components of the 3-hydroxypropionate Bicycle towards energy production. For map generation, see iPath .