>sp|Q8DU17|SPX_STRMU Global transcriptional regulator Spx OS=Streptococcus mutans serotype c GN=spx MVTLFLSPSCTSCRKARAWLNRHDVVFQEHNIMTSPLSRDELLKILSYTENGTEDIISTR SKVFQKLDIDVDELSVSELINLISKNPSLLRRPIIMDNKRMQIGFNEDEIRAFLPRDYRK QELRQATIRAEVEGEDD