# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.40829 Bacteria.23890 Proteobacteria.191661 Alphaproteobacteria.61063 Neorhizobium.6770 Neorhizobium_galegae.6756 ngl.5258 ngl:RG1141_PA07890 nikE; Nickel ABC tranporter, ATP-binding protein NikE; K02031 peptide/nickel transport system ATP-binding protein; K02032 peptide/nickel transport system ATP-binding protein