>sp|Q5JHR7|PYRDB_THEKO Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit OS=Thermococcus kodakarensis GN=pyrD MTVAKLSINLSGLEFENPLILASGINDKVPEQWIRAHEEGAGGVVTKSIGIEPRKGYDNP TIVELPYGLINAMGLPNPGWKGFLEMVEGYSFDFPLIVSIFGGTPEEFAFLAEKLSEVAD AFELNLSCPHAKGYGMEIGQKPENVYAVVKAVKDATDKPVIAKLTPNIDDITKLGLAAEN AGADAVSAINTLKAIAIDIYARKPILSNKVGGYSGPGVKPVALRAVYDLARTLDIPVIGI GGITTWQDAVEFLLAGASALQIGTAVSLRGWKVFREINEGIERYLREEGFSSVEEIVGLA LE