Regulation by repression of urease biosy
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C. Zorn; R. Dietrich; Prof. Dr. H. Kaltwasser
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Article
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2007
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John Wiley and Sons
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English
⚖ 464 KB
## Abstract Measuring the specific enzyme activity in cells of __Proteus rettgeri__ it was shown that urease formation is controlled by repression through ammonia. Derepressed synthesis of the enzyme, as initiated by the absence of ammonia, required an external nitrogen source, which may not only b