Table 2.
Strains and plasmid used in this study.
| Construct/strain | Characteristic | Source |
|---|---|---|
| E. coli DH5α | supE44ΔlacU169 hsdR17 recA1 endA1 gyrA96 thi-1 relA1Φ80 dlacZ ΔM15 | Invitrogen |
| E. coli BL21 (DE3) pLysS | F-ompT hsdSB(rB−mB−) gal dcm(DE3)plysS(CmR) | Novagen |
| E. coli TOP10 | F-Φ80lacZΔM15 Δ(lacZYA-argF) U169 recA1 endA1 hsdR17 (rK–, mK+) phoA supE44 λ-thi-1 gyrA96 relA1 | Invitrogen |
| E. coli BL21 (DE3) | F-ompT hsdSB(rB–, mB–) gal dcm (DE3) | Novagen |
| pET 28 (a) | 5.3 kb expression vector; kanr | Novagen |
| pBAD His (c) | 4.1 kb, L-arabinose regulated pBR322-derived expression vectors designed for regulated, recombinant protein expression and purification in E. coli. | Invitrogen |
| pGEX4T1 | 4.96 kb, bacterial vector for expressing fusion proteins with a thrombin site, GST tagged | GE Healthcare |
| pJSL/JSL | pBAD His (c) alone without insert in E. coli Top 10 cells | Present study |
| pJSL1/JSL1 | pGEX4T vector containing 285 bp RelB toxin gene from RelE TA module of X. nematophila. | Present study |
| pJSL2/JSL2 | pET 28 (a) vector containing 252 bp RelE antitoxin gene from RelE TA module of X. nematophila. | Present study |
| pJSL3/JSL3 | pBAD vector containing 285 bp RelE toxin gene from RelE TA module of X. nematophila. | Present study |
| pJSL4/JSL4 | pBAD vector containing 526 bp full RelE operon from the genome of X. nematophila. | Present study |