# OC Root 2nd 3rd 4th PC Gene/Definition OC.505365 Archaea.91982 Thaumarchaeota.5070 Nitrososphaera.1401 nvn.1173 nvn:NVIE_011950 hypothetical protein OC.505365 Archaea.91982 Thaumarchaeota.5070 Nitrososphaera.1401 nev.2481 nev:NTE_02606 dihydrofolate reductase