Fig. 3.
Overexpression and purification of the LamA/SbpA fusion protein. (a) SDS-PAGE analysis after Coomassie staining. Lane 1, Bench mark ladder (All blue, Biorad laboratories, Hercules, CA); lane 2, E. coli BL21star(DE3) expression culture harboring plasmid pET28a.sbpA.lamA before induction; lane 3, E. coli BL21star(DE3) expression culture harboring plasmid pET28a.sbpA.lamA after 2 h of induction; lane 4, purified LamA/SbpA fusion protein. (b) Western blot analysis of LamA/SbpA using anti-vsv-g-peroxidase conjugate.