TABLE 1.
Bacterial strains and plasmids
| Strain or plasmid | Genetic markers | Source |
|---|---|---|
| Strains | ||
| L. lactis subsp. lactis 210 | Xyl− | J. Kondo (Marschall Products) |
| L. lactis subsp. lactis IO-1 | Xyl+ | P. Stansbury (University of Hertfordshire, Hertfordshire, United Kingdom) |
| L. lactis subsp. lactis NRRL B-4449 (formerly L. xylosus) | Xyl+ | A. J. Sinskey (Massachusetts Institute of Technology) |
| E. coli TG1 | supE hsdD5 thi Δ(lac− proAB) (F′ traD36 proAB laclq lacZ ΔM15) | |
| E. coli JM109 | el4−recA1 endA1 gyrA96 thi-1 hsDR17 supE44 relA1 Δ(lac− proAB) (F′ traD36 proAB laclqlacZΔM15) | |
| E. coli DH5αF′ | F′ endA1 hsdR17 supE44 thi-1 recA1 gyrA relA1 Δ(lacIZYA-argF) U169 deoR[80dlacΔ(lacZ)M15] | |
| Plasmids | ||
| pUC19 | Apr; lazZ′ | New England Biolabs (Beverly, Mass.) |
| pGEM-T | Apr; lacZ′ | Promega (Madison, Wis.) |
| pET19d | Apr | Novagen (Madison, Wisc.) |