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Interaction between ESAT-6 proteins. (A) Coomassie-stained SDS-polyacrylamide gel with recombinant ESAT-6 family proteins. The 14- and 21-kDa molecular mass markers are indicated (M). (B) Nitrocellulose membranes overlaid with specific antibodies as indicated. (C) Nitrocellulose membranes which were overlaid first with recombinant ESAT-6 proteins as indicated and subsequently with specific antibodies.
