# OC Root 2nd 3rd 4th PC Gene/Definition OC.40773 Bacteria.24101 Firmicutes.292617 Firmicutes___Clostridia.167840 hhl.1578 hhl:Halha_1728 oligopeptide/dipeptide ABC transporter, ATP-binding protein; K02031 peptide/nickel transport system ATP-binding protein