FIG. 6.

σ³² Dependence of the properties of cells growing in enriched M9 medium at logarithmic phase. All cells were grown at 30°C in the absence of IPTG: CAG9301 cells for which the chromosomal σ³² gene was inactivated by insertion of a kanamycin cassette (left), CAG9301 cells containing a plasmid-borne gene expressing WT σ³² (center), and CAG9301 cells containing a plasmid-borne gene expressing H107A σ³² (right).