A freeze-thaw method for disintegration of Escherichia coli cells producing T7 lysozyme used in pBAD expression systems.

Marta Wanarska; Piotr Hildebrandt; Józef Kur

doi:10.18388/abp.2007_3241

A freeze-thaw method for disintegration of Escherichia coli cells producing T7 lysozyme used in pBAD expression systems.

Marta Wanarska Department of Microbiology, Chemical Faculty, Gdańsk University of Technology, Gdańsk, Poland. martka.chem@wp.pl;
Piotr Hildebrandt
Józef Kur

DOI: https://doi.org/10.18388/abp.2007_3241

Abstract

The pLysN plasmid containing the T7 lysozyme gene under control of the lac promoter was constructed to facilitate cell disintegration after expression of recombinant proteins in arabinose-induced expression systems. The usefulness of this plasmid was tested in Escherichia coli TOP10 and E. coli LMG194 cells carrying pBADMHADgeSSB plasmid containing Deinococcus geothermalis SSB protein gene under control of the araBAD promoter. The results showed that low-level expression of T7 lysozyme did not interfere with the target SSB protein production, and that the freezing-thawing treatment was sufficient for disruption of the E. coli cells producing low amounts of T7 lysozyme.

Published

2007-09-17

Issue

Vol. 54 No. 3 (2007)

Section

Articles

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