# OC Root 2nd 3rd 4th PC Gene/Definition OC.337154 Bacteria.278751 Actinobacteria.231396 Rubrobacter.292 rxy.1375 rxy:Rxyl_1365 riboflavin synthase, alpha subunit; K00793 riboflavin synthase [EC:2.5.1.9] OC.337154 Bacteria.278751 Actinobacteria.231396 Rubrobacter.292 rrd.1387 rrd:RradSPS_1371 ribE: riboflavin synthase, alpha subunit; K00793 riboflavin synthase [EC:2.5.1.9]