# OC Root 2nd 3rd 4th PC Gene/Definition OC.40770 Bacteria.24133 Firmicutes.38694 Firmicutes___Clostridia.184919 tmr.326 tmr:Tmar_0295 oligopeptide/dipeptide ABC transporter, ATPase subunit; K02031 peptide/nickel transport system ATP-binding protein