# OC Root 2nd 3rd 4th PC Gene/Definition OC.67215 Bacteria.16714 Thermotogae.980 Marinitoga.1296 mpz.598 mpz:Marpi_0608 signal transduction histidine kinase; K07636 two-component system, OmpR family, phosphate regulon sensor histidine kinase PhoR [EC:2.7.13.3] OC.67215 Bacteria.16714 Thermotogae.980 Marinitoga.1296 marn.590 marn:LN42_03485 hypothetical protein; K07636 two-component system, OmpR family, phosphate regulon sensor histidine kinase PhoR [EC:2.7.13.3]