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Cited by 450

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Tuning Escherichia coli for membrane protein overexpression

Open access
Wagner, Samuel, Klepsch, Mirjam M., Schlegel, Susan, Appel, Ansgar, Draheim, Roger, Tarry, Michael, Högbom, Martin, van Wijk, Klaas J., Slotboom, Dirk J., Persson, Jan O., de Gier, Jan-Willem·2008·Proceedings of the National Academy of Sciences

Abstract

A simple generic method for optimizing membrane protein overexpression in Escherichia coli is still lacking. We have studied the physiological response of the widely used “Walker strains” C41(DE3) and C43(DE3), which are derived from BL21(DE3), to membrane protein overexpression. For unknown reasons, overexpression of many membrane proteins in these strains is hardly toxic, often resulting in high overexpression yields. By using a combination of physiological, proteomic, and genetic techniques we have shown that mutations in the lac UV5 promoter governing expression of T7 RNA polymerase are key to the improved membrane protein overexpression characteristics of the Walker strains. Based on this observation, we have engineered a derivative strain of E. coli BL21(DE3), termed Lemo21(DE3), in which the activity of the T7 RNA polymerase can be precisely controlled by its natural inhibitor T7 lysozyme (T7Lys). Lemo21(DE3) is tunable for membrane protein overexpression and conveniently allows optimizing overexpression of any given membrane protein by using only a single strain rather than a multitude of different strains. The generality and simplicity of our approach make it ideal for high-throughput applications.

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Metadata

Authors
Wagner, S., Klepsch, M. M., Schlegel, S., Appel, A., Draheim, R., Tarry, M., Högbom, M., van Wijk, K. J., Slotboom, D. J., Persson, J. O., & de Gier, J.-W.
Venue
Proceedings of the National Academy of Sciences
Published
2008-09-23
Volume
105
Issue
38
Pages
14371-14376
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2100100451
Cited by
450
References
17
FWCI
11.07
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Tuning Escherichia coli for membrane protein overexpression. https://app.cochat.ai/papers/10.1073/pnas.0804090105
The paper
Wagner, S., Klepsch, M. M., Schlegel, S., Appel, A., Draheim, R., Tarry, M., Högbom, M., van Wijk, K. J., Slotboom, D. J., Persson, J. O., & de Gier, J.-W. (2008). Tuning Escherichia coli for membrane protein overexpression. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0804090105

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