Protein release fromEscherichia coli cells permeabilized with guanidine-HCl and Triton X100

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Protein release from Escherichia coli cells permeabilized with guanidine-HCl and Triton X100.

An important factor complicating the recovery of recombinant proteins from Escherichia coli is their intracellular location. An alternative to the commonly used method of releasing these proteins by mechanical disruption is to chemically permeabilize the cells. The objective of this research was to characterize the protein release kinetics of a permeabilization process using guanidine-HCl and T...

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Rapid protein release from Escherichia coli by chemical permeabilization under fermentation conditions.

Overall protein release greater than 75% in less than 1 h can be attained by exposing exponentially growing Escherichia coli cells to 0.4 M guanidine plus 0.5% Triton X-100 at 37 degrees C in medium. Cell growth stops immediately upon addition of the chemicals, but the cells are not lysed. Guanidine concentrations lower than 0.2 M, in conjunction with 0.5% Triton X-100, do not release significa...

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Characterization of Hormone and Protein Release from a-Toxin-permeabilized Chromaffin Cells in Primary Culture*

Addition of Staphylococcus aureus a-toxin to adult bovine chromaffin cells maintained in primary culture causes permeabilization of cell membrane as shown by the release of intracellular “Rb”. The a-toxin does not provoke a spontaneous release of either catecholamines or chromogranin A, a protein marker of the secretory granule, showing the integrity of the secretory vesicle membrane. However t...

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Characterization of hormone and protein release from alpha-toxin-permeabilized chromaffin cells in primary culture.

Addition of Staphylococcus aureus alpha-toxin to adult bovine chromaffin cells maintained in primary culture causes permeabilization of cell membrane as shown by the release of intracellular 86Rb+. The alpha-toxin does not provoke a spontaneous release of either catecholamines or chromogranin A, a protein marker of the secretory granule, showing the integrity of the secretory vesicle membrane. ...

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ژورنال

عنوان ژورنال: Biotechnology and Bioengineering

سال: 1989

ISSN: 0006-3592,1097-0290

DOI: 10.1002/bit.260330712