# OC Root 2nd 3rd 4th PC Gene/Definition OC.207719 Archaea.16079 Euryarchaeota.15044 Haloterrigena.7523 htu.4849 htu:Htur_5166 dihydroorotate dehydrogenase; K00254 dihydroorotate dehydrogenase [EC:1.3.5.2] OC.207719 Archaea.16079 Euryarchaeota.15044 Haloterrigena.3474 hda.3358 hda:BB347_17380 dihydroorotate dehydrogenase (quinone); K00254 dihydroorotate dehydrogenase [EC:1.3.5.2]