Figure 2.

Nontoxic effects of the recovered plasmids against E. coli strain BL21. Colony forming ability of E. coli strain BL21 transformed with the recovered plasmids was examined; the results of three plasmids out of the eight recovered plasmids are included in this figure (solid marks). Colony forming ability of E. coli strain BL21 transformed with pGEX-SUP35NM is shown for comparison (open circle).