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Literature summary for 7.6.2.9 extracted from
- Thermoprotection of Bacillus subtilis by exogenously provided glycine betaine and structurally related compatible solutes: involvement of Opu transporters (2004), J. Bacteriol., 186, 1683-1693.
Protein Variants
| Protein Variants | Comment | Organism |
|---|---|---|
| additional information | mutant strain RMKB24, lacking OpuA, OpuC, and OpuD, is not protected by glycine betaine from the detrimental effects of high temperature, mutant strains RMKB34, RMKB22, and RMKB33, which express only one of the glycine betaine transporters, are protected from heat stress | Bacillus subtilis |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Bacillus subtilis | - |
wild-type strain JH642, mutant strains RMKB24, RMKB34, RMKB22, and RMKB33 | - |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| OpuA | - |
Bacillus subtilis |
| OpuC | - |
Bacillus subtilis |
| OpuD | - |
Bacillus subtilis |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 37 | 52 | reduced growth rate at higher temperatures, addition of 1 mM glycine betaine, homobetaine, carnitine, butyrobetaine, crotonobetaine, DMSP, choline, or glutamate have a clear thermoprotective effect at 52°C, heat protectants are taken up under heat stress via the OpuA, OpuC, and OpuD transporters, despite the strongly reduced glycine betaine transport rate at 52°C, substantial glycine betaine accumulation, but it is not increased in comparison to cells grown at 37°C, thermoprotection by glutamate does not depend on an increased cellular pool of this amino acid | Bacillus subtilis |
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