Evidence map›Paper›PMID 15262942›Full record

ArticleJournal of bacteriology2004

Three-dimensional electron microscopic imaging of membrane invaginations in Escherichia coli overproducing the chemotaxis receptor Tsr.

Jonathan Lefman, Peijun Zhang, Teruhisa Hirai, Robert M Weis, Jemma Juliani, Donald Bliss, Martin Kessel, Erik Bos, Peter J Peters, Sriram Subramaniam

Abstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. A Complex Endomembrane System in the ArchaeonFrontiers in microbiology · 2017
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Universal architecture of bacterial chemoreceptor arrays.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  15. Review
  16. Article
  17. Article
  18. Role of HAMP domains in chemotaxis signaling by bacterial chemoreceptors.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Jonathan LefmanLaboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20817, USA.
Peijun Zhang
Teruhisa Hirai
Robert M Weis
Jemma Juliani
Donald Bliss
Martin Kessel
Erik Bos
Peter J Peters
Sriram Subramaniam

Funding

Imaging cellular assemblies with three-dimensional electron microscopyZIABC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$8.0M
Imaging cellular assemblies with three-dimensional EMZ01BC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 1999 to 2008
$1.1M
6 · The paper itself

Abstract

Electron tomography is a powerful method for determining the three-dimensional structures of large macromolecular assemblies, such as cells, organelles, and multiprotein complexes, when crystallographic averaging methods are not applicable. Here we used electron tomographic imaging to determine the molecular architecture of Escherichia coli cells engineered to overproduce the bacterial chemotaxis receptor Tsr. Tomograms constructed from fixed, cryosectioned cells revealed that overproduction of Tsr led to formation of an extended internal membrane network composed of stacks and extended tubular structures. We present an interpretation of the tomogram in terms of the packing arrangement of Tsr using constraints derived from previous X-ray and electron-crystallographic studies of receptor clusters. Our results imply that the interaction between the cytoplasmic ends of Tsr is likely to stabilize the presence of the membrane networks in cells overproducing Tsr. We propose that membrane invaginations that are potentially capable of supporting axial interactions between receptor clusters in apposing membranes could also be present in wild-type E. coli and that such receptor aggregates could play an important role in signal transduction during bacterial chemotaxis.

Indexed as

Up-RegulationBacterial ProteinsCell MembraneChemotaxisEscherichia coliGenetic EngineeringImaging, Three-DimensionalMembrane ProteinsMicroscopy, ElectronReceptors, Cell SurfaceTomographyBacterial ProteinsMembrane ProteinsReceptors, Cell SurfaceTsr protein, Bacteria

Identifiers

PMID15262942
PMCPMC451663

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.