>sp|Q979G6|PYRDB_THEVO Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit OS=Thermoplasma volcanium GN=pyrD MSDISTTLAGIKLVNPFMVASGILDENGYTMKELLERGAAAVVTKSIGISERDGYPTPVI VEYGDSLINAVGLSNPGIENFGEEINIAKEAKRPIIGSVFAYNAEEFTKLSVKMEEYGVD AIELNLSCPHVKGFGLEVGSDPDLVEDIVNEIKSKVKVPVFAKLSPNVSNIIEIAKAAEK ADAYVLINTVKAMAIDIYSRSPVLSNLYGGLSGPAIKPVGIRYVYEVKKETGKEIIGVGG ISNYKDAIEYIMAGASAVQIGTALYKYGKGIFREMEWQLRTFMDEERFEKIEEMVGVAIK R