# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.170441 Bacteria.18920 Proteobacteria.731058 Gammaproteobacteria.344258 Pseudomonas.48665 por.1747 por:APT59_08955 histidine kinase OC.170441 Bacteria.18920 Proteobacteria.731058 Gammaproteobacteria.344258 Pseudomonas.48665 ppsl.97 ppsl:BJP27_00220 histidine kinase