# OC Root 2nd 3rd 4th PC Gene/Definition OC.40523 Bacteria.23947 Firmicutes.46940 Firmicutes___Clostridia.71684 tmr.1330 tmr:Tmar_1339 oligopeptide/dipeptide ABC transporter, ATPase subunit; K02032 peptide/nickel transport system ATP-binding protein