# OC Root 2nd 3rd 4th PC Gene/Definition OC.40748 Bacteria.23854 Proteobacteria.474461 Alphaproteobacteria.342933 rhz.5271 rhz:RHPLAN_56210 oligopeptide/dipeptide ABC transporter ATPase; K02031 peptide/nickel transport system ATP-binding protein; K02032 peptide/nickel transport system ATP-binding protein