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 accessAbstract
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.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Coot : model-building tools for molecular graphics
Emsley, P., & Cowtan, K. (2004) · Acta Crystallographica Section D Biological Crystallography · doi:10.1107/s0907444904019158 · Cited by 30,571
Phaser crystallographic software
McCoy, A. J., Grosse-Kunstleve, R. W., Adams, P. D., Winn, M. D., Storoni, L. C., & Read, R. J. (2007) · Journal of Applied Crystallography · doi:10.1107/s0021889807021206 · Cited by 20,612
PHENIX : building new software for automated crystallographic structure determination
Adams, P. D., Grosse-Kunstleve, R. W., Hung, L.-W., Ioerger, T. R., McCoy, A. J., Moriarty, N. W., Read, R. J., Sacchettini, J. C., Sauter, N. K., & Terwilliger, T. C. (2002) · Acta Crystallographica Section D Biological Crystallography · doi:10.1107/s0907444902016657 · Cited by 4,361
Cited by
Secretion systems in Gram-negative bacteria: Structural and mechanistic insights
Costa, T. R. D., Felisberto-Rodrigues, C., Meir, A., Prevost, M. S., Redzej, A., Trokter, M., & Waksman, G. (2015) · Nature Reviews Microbiology · doi:10.1038/nrmicro3456 · Cited by 1,132
Self-citationLife in the human stomach: persistence strategies of the bacterial pathogen Helicobacter pylori
Salama, N. R., Hartung, M. L., & Müller, A. (2013) · Nature Reviews Microbiology · doi:10.1038/nrmicro3016 · Cited by 663
Wallden, K., Rivera-Calzada, A., & Waksman, G. (2010) · Cellular Microbiology · doi:10.1111/j.1462-5822.2010.01499.x · Cited by 344
Self-citationAgrobacterium-Mediated Plant Transformation: Biology and Applications
Hwang, H.-H., Yu, M., & Lai, E.-M. (2017) · The Arabidopsis Book · doi:10.1199/tab.0186 · Cited by 312
A comprehensive guide to pilus biogenesis in Gram-negative bacteria
Hospenthal, M. K., Costa, T. R. D., & Waksman, G. (2017) · Nature Reviews Microbiology · doi:10.1038/nrmicro.2017.40 · Cited by 294
Self-citation
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
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Structure of the outer membrane complex of a type IV secretion system. https://app.cochat.ai/papers/10.1038/nature08588
- The paper
- 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
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
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.