# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.40567 Bacteria.24136 Proteobacteria.431494 Alphaproteobacteria.273040 Ruegeria.5277 Ruegeria_sp_.5209 rue.968 rue:DT065_04620 ABC transporter ATP-binding protein OC.40568 Bacteria.24114 Proteobacteria.431769 Alphaproteobacteria.273320 Ruegeria.5558 Ruegeria_sp_.5490 rue.1249 rue:DT065_06215 ABC transporter ATP-binding protein; K02031 peptide/nickel transport system ATP-binding protein