Summary
D-Serine deaminase hyperproducing mutants ofE. coli lose about one half of their original activity during passaging. On the other hand, the mutant hyperproducing tryptophanase is completely stable.
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Pavlasová, E., Stejskalová, E. & Sikyta, B. Stability of hyperproduction of D-serine deaminase and tryptophanase inEscherichia coli . Biotechnol Lett 9, 761–764 (1987). https://doi.org/10.1007/BF01028280
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DOI: https://doi.org/10.1007/BF01028280