# OC Root	2nd	3rd	4th	PC	Gene/Definition
OC.57921	Archaea.67892	Euryarchaeota.52986	Methanoregula.2413	mfo.251	mfo:Metfor_0149   NADH:ubiquinone oxidoreductase subunit 5 (chain L)/multisubunit Na+/H+ antiporter, MnhA subunit; K05568 multicomponent Na+:H+ antiporter subunit D