. "1.1.99.6" . . . "D-erythronate 2-dehydrogenase" . . . . "D-2-hydroxyacid dehydrogenase" . "D-2-hydroxy-acid dehydrogenase" . . . . . "D-2-hydroxy-acid dehydrogenase" . . . "D-2-hydroxy-acid dehydrogenase" .