# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.509937 Bacteria.288925 Proteobacteria.118937 Gammaproteobacteria.276643 Gammaproteobacteria___Enterobacteria.90450 Riesia.207 rig.176 rig:AOQ88_00685 hypothetical protein; K15724 iron-sulfur cluster insertion protein