>sp|Q97R66|PYRK_STRPN Dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit OS=Streptococcus pneumoniae serotype 4 GN=pyrK MKVVAQEEIAPAIFELVLEGEMVEAMRAGQFLHLRVPDDAHLLRRPISISSIDKANKQCH LIYRIDGAGTAIFSTLSQGDTLDVMGPQGNGFDLSDLDEQNQVLLVGGGIGVPPLLEVAK ELHERGVKVVTVLGFANKDAVILKTELAQYGQVFVTTDDGSYGIKGNVSVVINDLDSQFD AVYSCGAPGMMKYINQTFDDHPRAYLSLESRMACGMGACYACVLKVPENETVSQRVCEDG PVFRTGTVVL