Evidence map›Paper›PMID 12775701›Full record

ArticleJournal of bacteriology2003

Electron microscopic analysis of membrane assemblies formed by the bacterial chemotaxis receptor Tsr.

Robert M Weis, Teruhisa Hirai, Anas Chalah, Martin Kessel, Peter J Peters, Sriram Subramaniam

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.1field-weighted citation impact, top 6% of its field
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

39 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Baseplate variability ofProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  4. Review
  5. Flexible Hinges in Bacterial Chemoreceptors.Journal of bacteriology · 2018
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. A dynamic-signaling-team model for chemotaxis receptors in Escherichia coli.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  14. Electron cryotomography.Cold Spring Harbor perspectives in biology · 2010
    Review
  15. Article
  16. Article
  17. Universal architecture of bacterial chemoreceptor arrays.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  18. Article
  19. Article
  20. 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
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

6 authors at 4 institutions in 2 countries.

Robert M WeisLaboratory of Biochemistry, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20817, USA. rmweis@chem.umass.edu
Teruhisa Hirai
Anas Chalah
Martin Kessel
Peter J Peters
Sriram Subramaniam
National Cancer Institute · USNational Institutes of Health · USThe Netherlands Cancer Institute · NLUniversity of Massachusetts Amherst · US

Funding

Imaging cellular assemblies with three-dimensional EMZ01BC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 1999 to 2008
$1.1M
LIGAND &SUBUNIT INTERACTIONS OF TRANSMEMBRANE RECEPTORSR01GM053210 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI WEIS, ROBERT M · 1997 to 2004
$812k
NIGMS NIH HHS R01 NIGMS53210
6 · The paper itself

Abstract

The serine receptor (Tsr) from Escherichia coli is representative of a large family of transmembrane receptor proteins that mediate bacterial chemotaxis by influencing cell motility through signal transduction pathways. Tsr and other chemotaxis receptors form patches in the inner membrane that are often localized at the poles of the bacteria. In an effort to understand the structural constraints that dictate the packing of receptors in the plane of the membrane, we have used electron microscopy to examine ordered assemblies of Tsr in membrane extracts isolated from cells engineered to overproduce the receptor. Three types of assemblies were observed: ring-like "micelles" with a radial arrangement of receptor subunits, two-dimensional crystalline arrays with approximate hexagonal symmetry, and "zippers," which are receptor bilayers that result from the antiparallel interdigitation of cytoplasmic domains. The registration among Tsr molecules in the micelle and zipper assemblies was sufficient for identification of the receptor domains and for determination of their contributions to the total receptor length. The overall result of this analysis is compatible with an atomic model of the receptor dimer that was constructed primarily from the X-ray crystal structures of the periplasmic and cytoplasmic domains. Significantly, the micelle and zipper structures were also observed in fixed, cryosectioned cells expressing the Tsr receptor at high abundance, suggesting that the modes of Tsr assembly found in vitro are relevant to the situation in the cell.

Indexed as

Signal TransductionBacterial ProteinsCryopreservationEscherichia coliIntracellular MembranesMembrane ProteinsMicroscopy, ElectronReceptors, Cell SurfaceBacterial ProteinsMembrane ProteinsReceptors, Cell SurfaceTsr protein, Bacteria

Identifiers

PMID12775701
PMCPMC156230
OpenAlexW2125485935

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.