# OC Root 2nd 3rd 4th PC Gene/Definition OC.645646 Archaea.26451 Euryarchaeota.29438 Methanohalophilus.770 mmh.859 mmh:Mmah_0875 phosphate uptake regulator, PhoU; K02039 phosphate transport system protein OC.645646 Archaea.26451 Euryarchaeota.29438 Methanohalophilus.770 mhaz.1762 mhaz:BHR79_09170 phosphate transport system regulatory protein PhoU; K02039 phosphate transport system protein