Table 1.
Strains and plasmids used in this study
| Name | Genotype | Reference or source |
|---|---|---|
| B. subtilis strains | ||
| SMY | Wild-type B. subtilis strain | Lab stock |
| JH642 | trpC2 pheA1 | J. A. Hoch (Scripps Research Institute, La Jolla, CA) |
| MAB160 | trpC2 pheA1 Ω citB∷spc | Ref. 10 |
| CA4 | pheA1 citB517 | This work |
| Plasmids | ||
| pTZM1 | Rabbit ferritin IRE under T7 promoter | Ref. 14 |
| pBluescript SK(−) | Stratagene | |
| pCA60 | OCA1 and OCA2 were annealed and ligated to pBluescript cut with XbaI-HindIII | This work |
| pCA61 | OCA3 and OCA4 were annealed and ligated to pBluescript cut with XbaI-HindIII | This work |