# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.663047 Bacteria.1185171 Proteobacteria.723824 Gammaproteobacteria.331928 Nitrosococcus.4068 noc.502 noc:Noc_0523 hypothetical protein OC.663047 Archaea.72115 Euryarchaeota.57319 Methanosarcina.9016 Methanosarcina_sp_.7614 metm.807 metm:MSMTP_0782 hypothetical protein