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Cited by 357

The DOI matches its Crossref record; 75 of the 75 references it cites were found in a registry or an index.

Structure and Function of TolC: The Bacterial Exit Duct for Proteins and Drugs

Koronakis, Vassilis, Eswaran, Jeyanthy, Hughes, Colin·2004·Annual Review of Biochemistry

Abstract

▪ Abstract The bacterial TolC protein plays a common role in the expulsion of diverse molecules, which include protein toxins and antibacterial drugs, from the cell. TolC is a trimeric 12-stranded α/β barrel, comprising an α-helical trans-periplasmic tunnel embedded in the outer membrane by a contiguous β-barrel channel. This structure establishes a 140 Å long single pore fundamentally different to other membrane proteins and presents an exit duct to substrates, large and small, engaged at specific inner membrane translocases. TolC is open to the outside medium but is closed at its periplasmic entrance. When TolC is recruited by a substrate-laden translocase, the entrance is opened to allow substrate passage through a contiguous machinery spanning the entire cell envelope, from the cytosol to the external environment. Transition to the transient open state is achieved by an iris-like mechanism in which entrance α-helices undergo an untwisting realignment, thought to be stabilized by interaction with periplasmic helices of the translocase. TolC family proteins are ubiquitous among gram-negative bacteria, and the conserved entrance aperture presents a possible cheomotherapeutic target in multidrug-resistant pathogens.

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Crossref · 10.1146/annurev.biochem.73.011303.074104

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Metadata

Authors
Koronakis, V., Eswaran, J., & Hughes, C.
Venue
Annual Review of Biochemistry
Published
2004-06
Volume
73
Issue
1
Pages
467-489
ISSN
  • 0066-4154 (ISSN-L)
  • 1545-4509
OpenAlex
W2167556437
Cited by
357
References
75
FWCI
1.17
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Structure and Function of TolC: The Bacterial Exit Duct for Proteins and Drugs. https://app.cochat.ai/papers/10.1146/annurev.biochem.73.011303.074104
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Koronakis, V., Eswaran, J., & Hughes, C. (2004). Structure and Function of TolC: The Bacterial Exit Duct for Proteins and Drugs. Annual Review of Biochemistry. https://doi.org/10.1146/annurev.biochem.73.011303.074104

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.