# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.341946 Bacteria.1006 Proteobacteria.77077 Alphaproteobacteria.122240 Methylorubrum.7710 Methylorubrum_extorquens.8740 mea.5310 mea:Mex_2p0442 Hypothetical protein