Table 2.
Correlation of plasmid stabilization and ParA-Gfp oscillation
Plasmid* | par2 components† | LF values‡ | Folds of stabilization | Oscillation of ParA-Gfp |
---|---|---|---|---|
pMH82 | None | 2.0 × 10−2 | 1.0 | No ParA-Gfp |
pGE2K | parC1 parA parB parC2 | 1.3 × 10−4 | 150 | No ParA-Gfp |
pGE202K | parC1 ΔparA parB parC2 | 2.0 × 10−2 | 1.0 | No ParA-Gfp |
pGE236 | parC1 ΔparA parB parC2 parA∷gfp | 2.7 × 10−4 | 75 | + |
pGE236G10V | parC1 ΔparA parB parC2 parA(G10V)∷gfp | 2.0 × 10−2 | 1.0 | − |
pGE236K14Q | parC1 ΔparA parB parC2 parA(K14Q)∷gfp | 3.2 × 10−2 | 0.6 | − |
pGE233 | parC1 parA parB parC2 parA∷gfp | 5.0 × 10−4 | 40 | + |
pGE230 | parA∷gfp | 1.7 × 10−2 | 1.2 | − |
All plasmids were derived from pMH82, a par− R1 test vector.
Δ indicates a 213-bp in-frame deletion in parA.
LF values are defined in the legend to Fig. 1. Plasmid-containing cells of strain KG22 (lacI
) were grown in LB medium at 30°C without IPTG. Culture dilutions were plated on LA plates containing X-gal (40 μg/ml) to determine the frequency of plasmid-containing cells. Numbers are in all cases averages of at least three independent experiments.