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Structure and function of bacterial outer membrane proteins: barrels in a nutshell

Open access
Koebnik, Ralf, Locher, Kaspar P., Van Gelder, Patrick·2000·Molecular Microbiology

Abstract

The outer membrane protects Gram‐negative bacteria against a harsh environment. At the same time, the embedded proteins fulfil a number of tasks that are crucial to the bacterial cell, such as solute and protein translocation, as well as signal transduction. Unlike membrane proteins from all other sources, integral outer membrane proteins do not consist of transmembrane α‐helices, but instead fold into antiparallel β‐barrels. Over recent years, the atomic structures of several outer membrane proteins, belonging to six families, have been determined. They include the OmpA membrane domain, the OmpX protein, phospholipase A, general porins (OmpF, PhoE), substrate‐specific porins (LamB, ScrY) and the TonB‐dependent iron siderophore transporters FhuA and FepA. These crystallographic studies have yielded invaluable insight into and decisively advanced the understanding of the functions of these intriguing proteins. Our review is aimed at discussing their common principles and peculiarities as well as open questions associated with them.

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Metadata

Authors
Koebnik, R., Locher, K. P., & Van Gelder, P.
Venue
Molecular Microbiology
Publisher
Wiley
Published
2000-07
Volume
37
Issue
2
Pages
239-253
ISSN
  • 0950-382X (ISSN-L)
  • 1365-2958
OpenAlex
W2004696942
Cited by
1,202
References
1
FWCI
20.41
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Structure and function of bacterial outer membrane proteins: barrels in a nutshell. https://app.cochat.ai/papers/10.1046/j.1365-2958.2000.01983.x
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Koebnik, R., Locher, K. P., & Van Gelder, P. (2000). Structure and function of bacterial outer membrane proteins: barrels in a nutshell. Molecular Microbiology. https://doi.org/10.1046/j.1365-2958.2000.01983.x

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