Evidence map›Paper›PMID 18658224›Full record

ArticleBiophysical journal2008

Structural and functional characterization of ryanodine receptor-natrin toxin interaction.

Qiang Zhou, Qiong-Ling Wang, Xing Meng, Yuyan Shu, Tao Jiang, Terence Wagenknecht, Chang-Cheng Yin, Sen-Fang Sui, Zheng Liu

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

20 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. CRISPs Function to Boost Sperm Power Output and Motility.Frontiers in cell and developmental biology · 2021
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
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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

9 authors at 6 institutions in 2 countries.

Qiang ZhouDepartment of Biological Sciences and Biotechnology, State-Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University, Beijing 100084, China.
Qiong-Ling Wang
Xing Meng
Yuyan Shu
Tao Jiang
Terence Wagenknecht
Chang-Cheng Yin
Sen-Fang Sui
Zheng Liu
New York State Department of Health · USPeking University · CNTsinghua University · CNChinese Academy of Sciences · CNGuangxi Medical University · CNWadsworth Center · US

Funding

ZERNIKE PHASE-CONTRAST IMAGINGP41RR001219 · NCRR · WADSWORTH CENTER · PI WAGENKNECHT, TERENCE C · 1985 to 2010
$11.1M
STRUCTURE OF CHANNELS IN EXCITATION/CONTRACTION COUPLINGR01AR040615 · NIAMS · WADSWORTH CENTER · PI WAGENKNECHT, TERENCE C · 1991 to 2014
$5.6M
NCRR NIH HHS P41 RR001219NIAMS NIH HHS AR40615NIAMS NIH HHS R01 AR040615
6 · The paper itself

Abstract

Cysteine-rich secretory proteins (CRISPs) are widely distributed, and notably occur in the mammalian reproductive tract and in the salivary glands of venomous reptiles. Most CRISPs can inhibit ion channels, such as the cyclic nucleotide-gated ion channel, potassium channel, and calcium channel. Natrin is a CRISP that has been purified from snake venom. Its targets include the calcium-activated potassium channel, the voltage-gated potassium channel, and the calcium release channel/ryanodine receptor (RyR). Immunoprecipitation experiments showed that natrin binds specifically to type 1 RyR (RyR1) from skeletal muscle. Natrin was found to inhibit both the binding of ryanodine to RyR1, and the calcium-channel activity of RyR1. Cryo-electron microscopy and single-particle image reconstruction analysis revealed that natrin binds to the clamp domains of RyR1. Docking of the crystal structure of natrin into our cryo-electron microscopy density map of the RyR1 + natrin complex suggests that natrin inhibits RyR1 by stabilizing a domain-domain interaction, and that the cysteine-rich domain of natrin is crucial for binding. These findings help reveal how natrin toxin inhibits the RyR calcium release channel, and they allow us to posit a generalized mechanism that governs the interaction between CRISPs and ion channels.

Indexed as

AnimalsCalcium Channel BlockersCalcium ChannelsCatalytic DomainCryoelectron MicroscopyCrystallography, X-RayCysteineElapid VenomsModels, MolecularMolecular ConformationProtein BindingProtein Structure, TertiaryRyanodineRyanodine Receptor Calcium Release ChannelSubstrate SpecificityCalcium Channel BlockersCalcium ChannelsCysteineElapid Venomsnatrin protein, Naja atraRyanodineRyanodine Receptor Calcium Release Channel

Identifiers

PMID18658224
PMCPMC2567950
OpenAlexW2150469567

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.