# OC Root 2nd 3rd 4th PC Gene/Definition OC.3056 Bacteria.7037 Proteobacteria.618700 Deltaproteobacteria.135222 samy.750 samy:DB32_000281 sensory box histidine kinase/response regulator OC.3056 Bacteria.6801 Proteobacteria.285003 Deltaproteobacteria.56355 samy.1610 samy:DB32_001313 Sensory box histidine kinase/response regulator