# OC Root 2nd 3rd 4th PC Gene/Definition OC.57947 Archaea.52352 Euryarchaeota.23146 Methanoregula.2412 mfo.250 mfo:Metfor_0148 NADH:ubiquinone oxidoreductase subunit 2 (chain N); K22169 F420H2 dehydrogenase subunit N [EC:1.5.98.3] OC.57947 Archaea.52352 Euryarchaeota.23146 Halorhabdus.760 hut.2174 hut:Huta_2223 NADH dehydrogenase (quinone); K05568 multicomponent Na+:H+ antiporter subunit D OC.57947 Archaea.52352 Euryarchaeota.23146 Halorhabdus.760 hti.1977 hti:HTIA_2023 NADH-ubiquinone oxidoreductase, chain N; K05568 multicomponent Na+:H+ antiporter subunit D OC.57947 Archaea.52352 Euryarchaeota.23146 - harc.585 harc:HARCEL1_02920 hypothetical protein; K00343 NADH-quinone oxidoreductase subunit N [EC:7.1.1.2]