Streptomyces lavendulae Protease Inhibitor: Purification, Gene Overexpression, and 3-Dimensional Structure

Figure 5

SDS-PAGE (15% gel), lane 1: protein profile from 2 mL culture supernatant of E. coli JM109 with expression vector stiI; lane 2: protein profile from 2 mL culture supernatant of Streptomyces sp.; lane 3: protein marker.