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Isolation ofEscherichia coli mutants with simultaneous hyperproduction of d-serine deaminase and β-galactosidase

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Summary

Double mutants ofE. coli hyperproducing D-serine deaminase and β-galactosidase were isolated by two successive selection procedures in the chemostat. The specific activity of D-serine deaminase is 10 times higher and β-galactosidase 5 times higher compared with the fully induced original strain B 28.

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Authors and Affiliations

  1. Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20, Prague 4, Czechoslovakia

    E. Pavlasová, E. Stejskalová & B. Sikyta

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  1. E. Pavlasová
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  2. E. Stejskalová
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  3. B. Sikyta
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Pavlasová, E., Stejskalová, E. & Sikyta, B. Isolation ofEscherichia coli mutants with simultaneous hyperproduction of d-serine deaminase and β-galactosidase. Biotechnol Lett 3, 455–458 (1981). https://doi.org/10.1007/BF01134108

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  • DOI: https://doi.org/10.1007/BF01134108

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