# OC Root 2nd 3rd 4th PC Gene/Definition OC.168693 Archaea.27683 Euryarchaeota.31030 Methanoculleus.1621 mem.1979 mem:Memar_2025 multi-sensor signal transduction histidine kinase OC.168693 Archaea.27683 Euryarchaeota.31030 Methanoculleus.1621 mbg.252 mbg:BN140_0242 sensor histidine kinase OC.168693 Archaea.27683 Euryarchaeota.31030 Methanoculleus.1621 mema.349 mema:MMAB1_0302 resE; Sensor histidine kinase ResE