# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.566752 Bacteria.1184895 Proteobacteria.723318 Gammaproteobacteria.331026 Nitrosococcus.2547 noc.518 noc:Noc_0542 hypothetical protein OC.566752 Bacteria.1184895 Proteobacteria.723318 Gammaproteobacteria.331026 Nitrosococcus.2547 nwa.2305 nwa:Nwat_2545 C4-dicarboxylate transporter/malic acid transport protein