# OC Root 2nd 3rd 4th PC Gene/Definition OC.40406 Archaea.21461 Euryarchaeota.22630 Halorhabdus.3509 hut.1809 hut:Huta_1847 oligopeptide/dipeptide ABC transporter, ATPase subunit; K02031 peptide/nickel transport system ATP-binding protein