# OC Root 2nd 3rd 4th 5th 6th 7th PC Gene/Definition OC.40787 Bacteria.933001 Proteobacteria.117619 Gammaproteobacteria.248001 Gammaproteobacteria___Enterobacteria.12202 Providencia.2798 Providencia_stuartii.3646 psi.153 psi:S70_00615 oligopeptide ABC transporter ATP-binding protein OppF; K10823 oligopeptide transport system ATP-binding protein