Figure 1From: M protein typing of Thai group A streptococcal isolates by PCR-Restriction fragment length polymorphism analysisDiagrammatic representation of the emm 1 and emm 25 genes of M1 and M25 proteins, respectively, showing the different A-, B- and C-repeat regions encoding the M protein. The location of the sense and antisense primers used for PCR amplification of the emm gene are indicated as well as the different emm gene amplicons (PCR products) that arise depending upon the number of C-repeat regions within the emm gene.Back to article page