# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.257180 Bacteria.204602 Proteobacteria.15348 Betaproteobacteria.14398 Hydrogenophaga.9269 hyr.4209 hyr:BSY239_929 bacterial regulatory helix-turn-helix, lysR family protein OC.257180 Bacteria.204602 Proteobacteria.15348 Betaproteobacteria.14398 Hydrogenophaga.3621 hyb.1809 hyb:Q5W_09225 LysR family transcriptional regulator