Threonine prevents derepression of pyridoxine synthesis in Escherichia coli B
| Autor: | W B Dempsey |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Threonine
Mutant Biology medicine.disease_cause Microbiology Serine chemistry.chemical_compound medicine Escherichia coli Molecular Biology Pyridoxal Derepression chemistry.chemical_classification fungi Pyridoxine Amino acid chemistry Biochemistry Mutation Amino Acids Branched-Chain medicine.drug Research Article |
| Zdroj: | Journal of bacteriology. 150(3) |
| ISSN: | 0021-9193 |
| Popis: | After 40 min of pyridoxal starvation, pyridoxine phosphate oxidase-less mutants of Escherichia coli B derepressed pyridoxine biosynthesis 13-fold to a rate of 1.7 X 10(-9) mol/h per mg of cells. Threonine at 100 mg/liter prevented this derepression but did not affect the continued synthesis of pyridoxine. Neither serine nor branched-chain amino acids altered the threonine effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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