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SDS/PAGE and Western immunoblot analysis of rSla, rSpeK, and rSSA. (A) SDS/PAGE gel of purified recombinant proteins. The purified recombinant proteins were analyzed with a 15% polyacrylamide gel. (B) Representative Western immunoblot using sera obtained humans infected with serotype M3 strains of GAS. A, acute-phase sera; C, convalescent-phase sera.
