# OC Root 2nd 3rd 4th PC Gene/Definition OC.40551 Bacteria.24243 Firmicutes.303765 Firmicutes___Clostridia.185224 tmr.695 tmr:Tmar_0688 oligopeptide/dipeptide ABC transporter, ATPase subunit; K02031 peptide/nickel transport system ATP-binding protein