>sp|C6E6N2|PYRDB_GEOSM Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit OS=Geobacter sp. GN=pyrD MQRPDMSVAVAGIKMRNPVMTASGTFGYGAEFADYLDLESIGAMISKGLSLKPKAGNPTP RIVETPGGMLNAIGLQNVGIDAFIEQKLPYLKNVNTPVIVNLYGNTLEEYGEVAARLDGL AGVAGIEVNISCPNVKQGGIVFGTDPGAAQEVVRLVKKNTSKPMIVKLSPNVTDVVVMAK ACADAGADALSLINTLTGMAIDLERRRPVLANVTGGLSGPAIKPVALRMVWQVGKAVKLP LIGIGGIMNGRDALEFMLAGATAVQVGTASFLDPSAAQRIAREMEQYLADHNIESVSSLI GALEL