Evidence map›Paper›PMID 22871814›Full record

ArticleNature communications2012

Distinct loops in arrestin differentially regulate ligand binding within the GPCR opsin.

Martha E Sommer, Klaus Peter Hofmann, Martin Heck

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Nature communications, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. A rapid, tag-free way to purify functional GPCRs.The Journal of biological chemistry · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Supramolecular organization of rhodopsin in rod photoreceptor cell membranes.Pflugers Archiv : European journal of physiology · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Structure and dynamics of GPCR signaling complexes.Nature structural & molecular biology · 2018
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Martha E SommerInstitut für Medizinische Physik und Biophysik (CC2), Charité - Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany. martha.sommer@charite.de
Klaus Peter Hofmann
Martin Heck
Charité - Universitätsmedizin Berlin · DEHumboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

G-protein-coupled receptors are universally regulated by arrestin binding. Here we show that rod arrestin induces uptake of the agonist all-trans-retinal [corrected] in only half the population of phosphorylated opsin in the native membrane. Agonist uptake blocks subsequent entry of the inverse agonist 11-cis-retinal (that is, regeneration of rhodopsin), but regeneration is not blocked in the other half of aporeceptors. Environmentally sensitive fluorophores attached to arrestin reported that conformational changes in loop(V-VI) (N-domain) are coupled to the entry of agonist, while loop(XVIII-XIX) (C-domain) engages the aporeceptor even before agonist is added. The data are most consistent with a model in which each domain of arrestin engages its own aporeceptor, and the different binding preferences of the domains lead to asymmetric ligand binding by the aporeceptors. Such a mechanism would protect the rod cell in bright light by concurrently sequestering toxic all-trans-retinal [corrected] and allowing regeneration with 11-cis-retinal.

Indexed as

AnimalsArrestinCattleModels, MolecularModels, TheoreticalOpsinsProtein BindingProtein Structure, SecondaryRetinaldehydeSpectrometry, FluorescenceArrestinOpsinsRetinaldehyde

Identifiers

PMID22871814
PMCPMC3455371
OpenAlexW2043164863

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.