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Regulation of extracellular proteins and α-amylase secretion by temperature inBacillus subtilis

Folia Microbiologica volume 34, pages 179–184 (1989)Cite this article

Abstract

α-Amylase was found to be the main protein secreted byBacillus subtilis, corresponding to 90, 87 and 60% of total extracellular proteins at 30, 40 and 45°C, respectively. A change in temperature can affect the pattern of proteins secreted as detected by gel electrophoresis.14C-Leucine incorporation into extracellular proteins and their proportion at the end of the growth phase was higher at 30°C than that at 40 or 45°C. The effect of temperature on α-amylase synthesis as determined by its enzymic activity and on the extracellular protein synthesis followed a similar pattern.

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Author notes

  1. J. Hao

    Present address: Institute of Genetics, Academia Sinica, Beijing, China

Affiliations

  1. Participant of the UNESCO course, Department of Enzyme Engineering, Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20, Prague 4

    J. Hao, J. Pazlarová, M. Strnadová & J. Chaloupka

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  1. J. Hao
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  2. J. Pazlarová
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  3. M. Strnadová
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  4. J. Chaloupka
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Hao, J., Pazlarová, J., Strnadová, M. et al. Regulation of extracellular proteins and α-amylase secretion by temperature inBacillus subtilis . Folia Microbiol 34, 179–184 (1989). https://doi.org/10.1007/BF02821290

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  • DOI: https://doi.org/10.1007/BF02821290

Keywords

  • Bacillus Subtilis
  • Extracellular Protein
  • Protein Turnover
  • Bacillus Megaterium
  • Total Extracellular Protein