# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.337188 Bacteria.539587 Proteobacteria.297075 Epsilonproteobacteria.97 Sulfurovum.816 sun.246 sun:SUN_0205 riboflavin synthase, alpha subunit; K00793 riboflavin synthase [EC:2.5.1.9] OC.337188 Bacteria.539587 Proteobacteria.297075 Epsilonproteobacteria.97 Sulfurovum.816 slh.1878 slh:YH65_10030 riboflavin synthase subunit alpha; K00793 riboflavin synthase [EC:2.5.1.9]