# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.463125 Bacteria.335736 Firmicutes.60261 Firmicutes___Clostridia.79890 Roseburia.2239 Roseburia_intestinalis.1003 rix.993 rix:RO1_11920 Citrate transporter. OC.463125 Bacteria.335736 Firmicutes.60261 Firmicutes___Clostridia.79890 Roseburia.2239 Roseburia_intestinalis.1003 rim.2150 rim:ROI_25650 Citrate transporter.