# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.40711 Bacteria.24382 Proteobacteria.358154 Alphaproteobacteria.131833 Ketogulonicigenium.3373 kro.46 kro:BVG79_00044 ddpD; peptide/nickel transport system ATP-binding protein; K02031 peptide/nickel transport system ATP-binding protein