# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.185737 Archaea.41267 Crenarchaeota.2408 Sulfolobus.5261 Sulfolobus_acidocaldarius.399 sacn.136 sacn:SacN8_00680 Citrate transporter OC.185737 Archaea.41267 Crenarchaeota.2408 Sulfolobus.5261 Sulfolobus_acidocaldarius.399 sacr.136 sacr:SacRon12I_00680 Citrate transporter