TABLE 7.
Integration frequencies of attPCTX in presence or absence of the three ssDNA binding proteins RecA, Ssb, and RstB
| Host | Integration frequency, 10−7 (mean ± SD)a | No. of screened colonies |
|---|---|---|
| N16961 (wt) | 3,733 ± 470 | 1,120 |
| AP7 (ΔrecA) | 3,660 ± 640 | 1,100 |
| BS1 (ΔrstB recA+) | 387 ± 273 | 1,160 |
| BS11 (ΔrstB ΔrecA) | 253 ± 117 | 760 |
| BS1 (ΔrstB pssb) | <1 | 107 |
| BS13 (rstB+ pssb) | 13 ± 7 | 260 |
a
The integration frequency was determined as described for Table 5. The standard deviation was calculated from at least three independent experiments.