Figure 1: Gene amplification, cloning, expression and purification.

(A) Agarose gel electrophoresis for PCR products. Lane M, 1 kb DNA Molecular-size marker; lane 1, 2: amplification of respective genes -rSS1 (783 bp), rSS2 (468 bp), rSS3 (489 bp), rSS4 (1239 bp), and rSS5 (1131 bp) from M. tuberculosis clinical isolates. lane 3 is negative control. (B) SDS-PAGE analyses of purified recombinant proteins (rSS1, rSS2, SS3, rSS4 and rSS5). Proteins were visualized with Coomassie brilliant blue staining. Abbreviations: WCL: Whole Cell Lysate, FT: Flow Through, P: Purified Protein, M: Marker (Protein).