Table 1. Bacteria strains used in the present study.
| Strain | Genotype | Source |
|---|---|---|
| E. coli JM109 | recA1, endA1, gyrA96, thi, hsdR17 (rk−, mk+), relA1, supE44, Δ(lac-proAB), [F',traD36, proAB, laclqZΔM15] | Promega (Chilworth, Southampton, U.K.) |
| E. coli BL21(λDE3) | F-ompT gal[dcm][ion]hsdsB (rB-mB-; an E. coli B strain) with DE3, a λ prophage carrying the T7 RNA polymerase gene | Novagen (Madison, WI, U.S.A.) |
| Epicurean coli™ XL1-Blue | recA1 endA1 gyrA96 thi-1 hsdR17 supE44 relA1 lac [F' proAB lacIqZΔM15 Tn10(Tetr)] | Stratagene |
| N. gonorrhoeae F62 | Parental strain | |
| N. gonorrhoeae JCGC214 | F62 cycP::ermC | Strain F62 transformed with linear ermC fragment from pST503 |