Evidence map›Paper›PMID 18832607›Full record

ArticleScience (New York, N.Y.)2008

The 2.6 angstrom crystal structure of a human A2A adenosine receptor bound to an antagonist.

Veli-Pekka Jaakola, Mark T Griffith, Michael A Hanson, Vadim Cherezov, Ellen Y T Chien, J Robert Lane, Adriaan P Ijzerman, Raymond C Stevens

Open access · greenAbstract read
In one paragraph

Article in Science (New York, N.Y.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 784 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
784citing papers in PubMed, 1 pooled it
86.6field-weighted citation impact, top 1% 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

784 citing papers in PubMed, 1 synthesis or guideline pooled it, 1,741 citations in OpenAlex.

  1. Pooled it
  2. An Excelled Trifluorinated Probe for GPCR Conformational Quantification.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. A novel fusion tool to enable G protein-coupled receptor structure determination.Acta crystallographica. Section D, Structural biology · 2026
    Article
  12. Membrane protein structure and dynamics probed by MicroED.Biochemical Society transactions · 2026
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Journal of the American Chemical Society · 2026
    Article
  19. Article
  20. Discovery of novel AMolecular diversity · 2025
    Article

724 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 2 countries.

Veli-Pekka JaakolaDepartment of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037 USA.
Mark T Griffith
Michael A Hanson
Vadim Cherezov
Ellen Y T Chien
J Robert Lane
Adriaan P Ijzerman
Raymond C Stevens
Centre for Human Drug Research · NLScripps Research Institute · US

Funding

JCSG Center:Innovative Membrane Protein Technology (RMI)P50GM073197 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI STEVENS, RAYMOND C · 2004 to 2013
$26.8M
Sub-project 5U54GM074961 · NIGMS · EMERALD BIOSTRUCTURES · PI STEWART, LANCE J · 2005 to 2009
$19.3M
Molecular Mechanism of Allosteric Modulation of the Oxytocin Receptor by SterolsR01GM089857 · NIGMS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI CHEREZOV, VADIM · 2010 to 2014
$1.7M
Membrane Proteins. Crystallogenesis/X-ray Structure(RMI)R01GM075915 · NIGMS · UNIVERSITY OF LIMERICK · PI CAFFREY, MARTIN D. · 2005 to 2009
$984k
NCI NIH HHS Y1-CO-1020NIGMS NIH HHS GM075915NIGMS NIH HHS P50 GM073197NIGMS NIH HHS R01 GM075915NIGMS NIH HHS R01 GM089857NIGMS NIH HHS U54 GM074961NIGMS NIH HHS Y1-GM-1104
6 · The paper itself

Abstract

The adenosine class of heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptors (GPCRs) mediates the important role of extracellular adenosine in many physiological processes and is antagonized by caffeine. We have determined the crystal structure of the human A2A adenosine receptor, in complex with a high-affinity subtype-selective antagonist, ZM241385, to 2.6 angstrom resolution. Four disulfide bridges in the extracellular domain, combined with a subtle repacking of the transmembrane helices relative to the adrenergic and rhodopsin receptor structures, define a pocket distinct from that of other structurally determined GPCRs. The arrangement allows for the binding of the antagonist in an extended conformation, perpendicular to the membrane plane. The binding site highlights an integral role for the extracellular loops, together with the helical core, in ligand recognition by this class of GPCRs and suggests a role for ZM241385 in restricting the movement of a tryptophan residue important in the activation mechanism of the class A receptors.

Indexed as

Adenosine A2 Receptor AntagonistsAnimalsBinding SitesCrystallography, X-RayHumansLigandsProtein BindingProtein ConformationReceptor, Adenosine A2AStructure-Activity RelationshipTriazinesTriazolesTryptophanTurkeysAdenosine A2 Receptor AntagonistsLigandsReceptor, Adenosine A2ATriazinesTriazolesTryptophanZM 241385

Identifiers

PMID18832607
PMCPMC2586971
OpenAlexW1975740938

What OpenQuestion holds

Textmetadata
LicenceTDM
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.