# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.183185 Bacteria.96792 Proteobacteria.359411 Alphaproteobacteria.146582 Nitrobacter.4587 nwi.1966 nwi:Nwi_2097 type IV secretion system protein VirB4; K20530 type IV secretion system protein TrbE OC.183185 Bacteria.96792 Proteobacteria.359411 Alphaproteobacteria.146582 - paby.1100 paby:Ga0080574_TMP1946 Conjugative transfer protein TrbE; K20530 type IV secretion system protein TrbE