# OC Root 2nd 3rd 4th PC Gene/Definition OC.40409 Archaea.18423 Euryarchaeota.18501 Haloquadratum.1538 hwa.319 hwa:HQ_1307A dppD1; ABC-type transport system ATP-binding protein (probable substrate dipeptide/oligopeptide); K02031 peptide/nickel transport system ATP-binding protein OC.40409 Archaea.18423 Euryarchaeota.18501 Haloquadratum.1538 hwc.326 hwc:Hqrw_1342 dppD1; ABC-type transport system ATP-binding protein (probable substrate dipeptide/oligopeptide); K02031 peptide/nickel transport system ATP-binding protein