# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.40712 Bacteria.24427 Proteobacteria.197422 Alphaproteobacteria.80845 Ketogulonicigenium.3850 kro.2517 kro:BVG79_p1000103 oppD; oligopeptide transport system ATP-binding protein; K02031 peptide/nickel transport system ATP-binding protein