# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.3053 Bacteria.7974 Proteobacteria.4616 Gammaproteobacteria.170135 Pseudoxanthomonas.2454 Pseudoxanthomonas_suwonensis.2398 psu.1406 psu:Psesu_1419 PAS/PAC sensor signal transduction histidine kinase