Evidence map›Paper›PMID 8988250›Full record

ReviewExperientia1996

Allosteric proteins after thirty years: the binding and state functions of the neuronal alpha 7 nicotinic acetylcholine receptors.

S J Edelstein, J P Changeux

Abstract readReview
PubMed Publisher
In one paragraph

Review in Experientia, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Subunit stoichiometry and arrangement in a heteromeric glutamate-gated chloride channel.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  5. An Update on GABAρ Receptors.Current neuropharmacology · 2010
    Article
  6. Mechanism of Allosteric Modulation of the Cys-loop Receptors.Pharmaceuticals (Basel, Switzerland) · 2010
    Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Implications of the quaternary twist allosteric model for the physiology and pathology of nicotinic acetylcholine receptors.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  13. Desensitization mechanism of GABA receptors revealed by single oocyte binding and receptor function.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2002
    Article
  14. Article
  15. Article
  16. Critical elements determining diversity in agonist binding and desensitization of neuronal nicotinic acetylcholine receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    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

2 authors.

S J EdelsteinDepartement de Biochimie, Université de Genève, Switzerland. Stuart.Edelstein@biochem.unige.ch
J P Changeux

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A key statement of the 1965 Monod-Wyman-Changeux (MWC) model for allosteric proteins concerns the distinction between the ligand-binding function (Y) and the relevant state function (R). Sequential models predict overlapping behavior of the two functions. In contrast, a straightforward experimental consequence of the MWC model is that for an oligomeric protein the parameters which characterize the two functions should differ significantly. Two situations, where R > Y and the system is hyper-responsive or where R < Y and the system is hypo-responsive, have been encountered. Indeed, the hyper-responsive pattern was first observed for the enzyme aspartate transcarbamoylase, by comparing Y with R monitored by a change in sedimentation. Extensions of the theory to ligand-gated channels led to the suggestion that, on the one hand, hyper-responsive properties also occur with high-affinity mutants. On the other hand, native channels of the acetylcholine neuronal alpha 7 receptor and low-affinity mutants of the glycine receptor can be interpreted in terms of the hypo-responsive pattern. For the ligand-gated channels, whereas R is detected directly by ion flux, ligand binding has rarely been measured and the formation of desensitized states may complicate the analysis. However, stochastic models incorporating both binding and channel opening for single molecules predict differences that should be measurable with new experimental approaches, particularly fluorescence correlation spectroscopy.

Indexed as

Allosteric RegulationLigandsModels, BiologicalProtein BindingProtein ConformationReceptors, NicotinicLigandsReceptors, Nicotinic

Identifiers

PMID8988250

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.