# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.637249 Bacteria.571586 Proteobacteria.58391 Gammaproteobacteria.182902 Nitrosococcus.2130 noc.1959 noc:Noc_2090 Protein of unknown function DUF488 OC.637249 Bacteria.571586 Proteobacteria.58391 Gammaproteobacteria.182902 Nitrosococcus.2130 nhl.785 nhl:Nhal_0774 protein of unknown function DUF488 OC.637249 Bacteria.571586 Proteobacteria.58391 Gammaproteobacteria.182902 Nitrosococcus.2130 nwa.960 nwa:Nwat_0998 protein of unknown function DUF488