3G0U HUMAN DIHYDROOROTATE DEHYDROGENASE IN COMPLEX WITH A LEFLUNOMIDE DERIVATIVE INHIBITOR 4 OXIDOREDUCTASE, BETA-ALPHA-BARREL, TIM-BARREL, FAD, FLAVOPROTEIN, MEMBRANE, MITOCHONDRION, MITOCHONDRION INNER MEMBRANE, POLYMORPHISM, PYRIMIDINE BIOSYNTHESIS, TRANSIT PEPTIDE