# OC Root 2nd 3rd 4th PC Gene/Definition OC.184371 Archaea.8618 Euryarchaeota.17260 Halodesulfurarchaeum.1302 halh.402 halh:HTSR_0413 membrane protein OC.184371 Archaea.8618 Euryarchaeota.17260 Halodesulfurarchaeum.1302 hhsr.392 hhsr:HSR6_0398 membrane protein