>sp|C4XPD6|PYRDB_SOLM1 Dihydroorotate dehydrogenase B (NAD(+)), catalytic subunit OS=Solidesulfovibrio magneticus GN=pyrD MSVDTSVRLPGMPVKNPVMTASGTFGYGLEFAPYGDLRSLGGIVVKGLSLAPRLGNPMPR IAETPCGMLNAIGLQNCGVEKFLRDKLPRLPWRETPIIANLYACDADEFAELAGVLSAEE GVAALEVNISCPNVKAGGIAFGQDPCMAGKLAEAVKKRAGDKPVWVKLSPNVTDIVSIAR AAVLGGADALTCINTLTGMSVDIRSRKPRLANVIGGLSGPAIKPVALRAVWQVCQAVSAP VIGVGGISSAEDVLEFILVGAHAVQIGTANFMRPDMAFRIAERLPQLMAELGIEDLASYR GSLRVG