Evidence map›Paper›PMID 32231289›Full record

ArticleNature structural & molecular biology2020

Cryo-EM structures of the ATP release channel pannexin 1.

Zengqin Deng, Zhihui He, Grigory Maksaev, Ryan M Bitter, Michael Rau, James A J Fitzpatrick, Peng Yuan

Abstract read
PubMed Publisher
In one paragraph

Article in Nature structural & molecular biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

81 citing papers in PubMed, 128 citations in OpenAlex.

  1. Review
  2. Article
  3. When can AlphaFold predict the oligomeric states of proteins?Protein science : a publication of the Protein Society · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Pannexins in the vasculature.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  9. Article
  10. Article
  11. Pannexin channels in the kidney.American journal of physiology. Renal physiology · 2025
    Review
  12. Article
  13. Review
  14. Contribution of pannexin channels to afterimage signals in the amphibian retina.American journal of physiology. Cell physiology · 2025
    Article
  15. Article
  16. Article
  17. A mechanism of CALHM1 ion channel gating.American journal of physiology. Cell physiology · 2025
    Article
  18. Article
  19. Novel Naphthyridones Targeting Pannexin 1 for Colitis Management.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  20. Article

21 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

7 authors at 1 institution in 1 country.

Zengqin Deng *Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.ORCID http://orcid.org/0000-0002-5658-2068
Zhihui He *Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.ORCID http://orcid.org/0000-0003-4184-8377
Grigory MaksaevDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.ORCID http://orcid.org/0000-0001-6242-1634
Ryan M BitterDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.
Michael RauWashington University Center for Cellular Imaging, Washington University School of Medicine, St. Louis, MO, USA.ORCID http://orcid.org/0000-0001-5170-2000
James A J FitzpatrickDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA.ORCID http://orcid.org/0000-0002-7907-3602
Peng YuanDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA. yuanp@wustl.edu.ORCID http://orcid.org/0000-0002-5660-225X
Washington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The plasma membrane adenosine triphosphate (ATP) release channel pannexin 1 (PANX1) has been implicated in many physiological and pathophysiological processes associated with purinergic signaling, including cancer progression, apoptotic cell clearance, inflammation, blood pressure regulation, oocyte development, epilepsy and neuropathic pain. Here we present near-atomic-resolution structures of human and frog PANX1 determined by cryo-electron microscopy that revealed a heptameric channel architecture. Compatible with ATP permeation, the transmembrane pore and cytoplasmic vestibule were exceptionally wide. An extracellular tryptophan ring located at the outer pore created a constriction site, potentially functioning as a molecular sieve that restricts the size of permeable substrates. The amino and carboxyl termini, not resolved in the density map, appeared to be structurally dynamic and might contribute to narrowing of the pore during channel gating. In combination with functional characterization, this work elucidates the previously unknown architecture of pannexin channels and establishes a foundation for understanding their unique channel properties.

Indexed as

Cryoelectron MicroscopyAdenosine TriphosphateAnimalsAnuraCell MembraneConnexinsHumansNerve Tissue ProteinsProtein ConformationSignal TransductionAdenosine TriphosphateConnexinsNerve Tissue ProteinsPANX1 protein, human

Identifiers

PMID32231289
OpenAlexW3013222411

What OpenQuestion holds

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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.