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Cited by 303

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Structure of the outer membrane complex of a type IV secretion system

Open access
Chandran, Vidya, Fronzes, Rémi, Duquerroy, Stéphane, Cronin, Nora, Navaza, Jorge, Waksman, Gabriel·2009·Nature

Abstract

Type IV secretion systems are secretion nanomachines spanning the two membranes of Gram-negative bacteria. Three proteins, VirB7, VirB9 and VirB10, assemble into a 1.05 megadalton (MDa) core spanning the inner and outer membranes. This core consists of 14 copies of each of the proteins and forms two layers, the I and O layers, inserting in the inner and outer membrane, respectively. Here we present the crystal structure of a ∼0.6 MDa outer-membrane complex containing the entire O layer. This structure is the largest determined for an outer-membrane channel and is unprecedented in being composed of three proteins. Unexpectedly, this structure identifies VirB10 as the outer-membrane channel with a unique hydrophobic double-helical transmembrane region. This structure establishes VirB10 as the only known protein crossing both membranes of Gram-negative bacteria. Comparison of the cryo-electron microscopy (cryo-EM) and crystallographic structures points to conformational changes regulating channel opening and closing.

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Metadata

Authors
Chandran, V., Fronzes, R., Duquerroy, S., Cronin, N., Navaza, J., & Waksman, G.
Venue
Nature
Published
2009-11-29
Volume
462
Issue
7276
Pages
1011-1015
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2043126144
Cited by
303
References
3
FWCI
14.08
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Structure of the outer membrane complex of a type IV secretion system. https://app.cochat.ai/papers/10.1038/nature08588
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Chandran, V., Fronzes, R., Duquerroy, S., Cronin, N., Navaza, J., & Waksman, G. (2009). Structure of the outer membrane complex of a type IV secretion system. Nature. https://doi.org/10.1038/nature08588

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

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