# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.671293 Bacteria.303374 Proteobacteria.225245 Gammaproteobacteria.10335 Halothiobacillus.754 hna.518 hna:Hneap_0528 protein of unknown function DUF28 OC.671293 Bacteria.303374 Proteobacteria.225245 Gammaproteobacteria.10335 Halothiobacillus.754 haz.1881 haz:A9404_09770 hypothetical protein