# OC Root 2nd 3rd PC Gene/Definition OC.226436 Archaea.85571 Euryarchaeota.71595 mka.329 mka:MK0260 Activator of 2-hydroxyglutaryl-CoA dehydratase, contains a HSP70-class ATPase domain OC.226446 Archaea.1675 Euryarchaeota.26492 mka.624 mka:MK0580 Activator of 2-hydroxyglutaryl-CoA dehydratase (HSP70-class ATPase domain)