L-threonine dehydrogenase of Escherichia coli K-12
β Scribed by Sharon A. Boylan; Eugene E. Dekker
- Book ID
- 119406570
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 862 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0006-291X
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We describe the regulatory properties of two strains carrying either the ilvA624 or the ilvA625 mutations, located in the structural gene for threonine deaminase. Crude extracts of both these strains possess a threonine deaminase activity migrating on polyacrylamide gels, differently from the wild t
A fine structure analysis of the threonine operon in Escherichia coli K-12 was performed by deletion mapping. Lambda transducing bacteriophages carrying various parts of the threonine operon were isolated from strains in which the lacZ gene was fused to a thr gene. We tested for recombination betwee