# OC Root 2nd 3rd 4th PC Gene/Definition OC.40380 Bacteria.24373 Spirochaetes.30135 Treponema.10891 tpi.1858 tpi:TREPR_2128 dipeptide transport ATP-binding protein DppD; K15583 oligopeptide transport system ATP-binding protein OC.40389 Bacteria.24276 Spirochaetes.30030 Treponema.10775 tpi.1633 tpi:TREPR_1787 oligopeptide transport ATP-binding protein AppD; K02031 peptide/nickel transport system ATP-binding protein OC.40391 Bacteria.24432 Spirochaetes.38353 - tpx.2738 tpx:Turpa_2877 oligopeptide/dipeptide ABC transporter, ATPase subunit; K02031 peptide/nickel transport system ATP-binding protein