dihydroorotate dehydrogenase (subfamily 1) family protein
This family includes subfamily 1 dihydroorotate dehydrogenases while excluding the closely related subfamily 2 (TIGR01036). This family also includes a number of uncharacterized proteins and a domain of dihydropyrimidine dehydrogenase. The uncharacterized proteins might all be dihydroorotate dehydrogenase.