# OC Root	2nd	3rd	PC	Gene/Definition
OC.275409	Archaea.8306	Thaumarchaeota.625	ndv.1764	ndv:NDEV_1847   sdhA; succinate dehydrogenase, flavoprotein subunit; K00239 succinate dehydrogenase / fumarate reductase, flavoprotein subunit [EC:1.3.5.1 1.3.5.4]