# OC Root 2nd 3rd 4th PC Gene/Definition OC.578113 Bacteria.252187 Proteobacteria.606919 Deltaproteobacteria.120753 gsb.2761 gsb:GSUB_16535 hypothetical protein OC.578113 Bacteria.252187 Proteobacteria.453432 Alphaproteobacteria.306143 caq.185 caq:IM40_00260 hypothetical protein; K02653 type IV pilus assembly protein PilC