# OC Root 2nd 3rd 4th PC Gene/Definition OC.412390 Bacteria.294076 Proteobacteria.177819 Alphaproteobacteria.319224 mcg.2623 mcg:GL4_2713 MgtC family OC.412390 Bacteria.294076 Proteobacteria.177819 Alphaproteobacteria.347438 tmo.1011 tmo:TMO_0959 membrane protein