# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.226764 Bacteria.577522 Proteobacteria.95742 Alphaproteobacteria.134308 Roseobacter.451 rde.1462 rde:RD1_1572 nirJ; nitrite reductase heme biosynthesis J protein, putative OC.226764 Bacteria.577522 Proteobacteria.95742 Alphaproteobacteria.134308 Roseobacter.451 rli.3040 rli:RLO149_c031310 hypothetical protein