# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.3056 Bacteria.6753 Proteobacteria.278373 Deltaproteobacteria.42584 Pelobacter.1259 pca.222 pca:Pcar_0181 sensor histidine kinase response regulator, PAS and PAS domain-containing, putative heme-binding site OC.3056 Bacteria.7073 Proteobacteria.177994 Deltaproteobacteria.3392 Pelobacter.5062 ppd.74 ppd:Ppro_1138 PAS/PAC sensor hybrid histidine kinase OC.3056 Bacteria.7073 Proteobacteria.177994 Deltaproteobacteria.3392 Pelobacter.5062 ppd.74 ppd:Ppro_1139 PAS/PAC sensor hybrid histidine kinase OC.3056 Bacteria.7736 Proteobacteria.581276 Deltaproteobacteria.86784 Pelobacter.6135 ppd.1186 ppd:Ppro_1171 histidine kinase OC.3056 Bacteria.6753 Proteobacteria.278373 Deltaproteobacteria.42584 Pelobacter.1259 pace.2603 pace:A6070_14185 hypothetical protein