# OC Root 2nd 3rd 4th PC Gene/Definition OC.40666 Bacteria.23918 Proteobacteria.796273 Gammaproteobacteria.466760 woc.66 woc:BA177_00060 hypothetical protein; K02031 peptide/nickel transport system ATP-binding protein; K02032 peptide/nickel transport system ATP-binding protein