# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.40593 Bacteria.24195 Proteobacteria.360915 Alphaproteobacteria.160853 Ruegeria.11634 sil.710 sil:SPO0702 oligopeptide ABC transporter, ATP-binding protein; K02032 peptide/nickel transport system ATP-binding protein