# OC Root 2nd 3rd 4th PC Gene/Definition OC.189611 Bacteria.251909 Proteobacteria.19283 Gammaproteobacteria.19404 mbah.2205 mbah:HYN46_11235 rpoB; DNA-directed RNA polymerase subunit beta; K03043 DNA-directed RNA polymerase subunit beta [EC:2.7.7.6]