Evidence map›Paper›PMID 20884800›Full record

ArticleThe Plant cell2010

A novel motif essential for SNARE interaction with the K(+) channel KC1 and channel gating in Arabidopsis.

Christopher Grefen, Zhonghua Chen, Annegret Honsbein, Naomi Donald, Adrian Hills, Michael R Blatt

Abstract read
In one paragraph

Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed.

  1. Article
  2. COJournal of integrative plant biology · 2026
    Article
  3. Article
  4. GORK KNature communications · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Research Progress on Plant Shaker KPlants (Basel, Switzerland) · 2024
    Review
  9. Review
  10. Review
  11. 2 in 1 Vectors Improve in Planta BiFC and FRET Analysis.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  12. Article
  13. Analyzing Protein-Protein Interactions Using the Split-Ubiquitin System.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  14. Article
  15. Engineering a KNature plants · 2022
    Article
  16. A mitochondrial ADXR-ADX-P450 electron transport chain is essential for maternal gametophytic control of embryogenesis inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Identification and Characterization of Shaker KFrontiers in plant science · 2022
    Article
  18. The sorting of cargo proteins in the plantFrontiers in plant science · 2022
    Review
  19. Review
  20. 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

6 authors.

Christopher GrefenLaboratory of Plant Physiology and Biophysics, Institute of Molecular, Cellular and Systems Biology-Plant Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Zhonghua Chen
Annegret Honsbein
Naomi Donald
Adrian Hills
Michael R Blatt

Funding

Biotechnology and Biological Sciences Research Council BB/C500595/1Biotechnology and Biological Sciences Research Council BB/D001528/1Biotechnology and Biological Sciences Research Council BB/F001630/1Biotechnology and Biological Sciences Research Council BB/F001673/1Biotechnology and Biological Sciences Research Council BB/H001630/1Biotechnology and Biological Sciences Research Council BB/H001673/1Biotechnology and Biological Sciences Research Council BB/H009817/1Biotechnology and Biological Sciences Research Council P12750Wellcome Trust
6 · The paper itself

Abstract

The SNARE (for soluble N-ethylmaleimide-sensitive factor protein attachment protein receptor) protein SYP121 (=SYR1/PEN1) of Arabidopsis thaliana facilitates vesicle traffic, delivering ion channels and other cargo to the plasma membrane, and contributing to plant cell expansion and defense. Recently, we reported that SYP121 also interacts directly with the K(+) channel subunit KC1 and forms a tripartite complex with a second K(+) channel subunit, AKT1, to control channel gating and K(+) transport. Here, we report isolating a minimal sequence motif of SYP121 prerequisite for its interaction with KC1. We made use of yeast mating-based split-ubiquitin and in vivo bimolecular fluorescence complementation assays for protein-protein interaction and of expression and electrophysiological analysis. The results show that interaction of SYP121 with KC1 is associated with a novel FxRF motif uniquely situated within the first 12 residues of the SNARE sequence, that this motif is the minimal requirement for SNARE-dependent alterations in K(+) channel gating when heterologously expressed, and that rescue of KC1-associated K(+) current of the root epidermis in syp121 mutant Arabidopsis plants depends on expression of SNARE constructs incorporating this motif. These results establish the FxRF sequence as a previously unidentified motif required for SNARE-ion channel interactions and lead us to suggest a mechanistic framework for understanding the coordination of vesicle traffic with transmembrane ion transport.

Indexed as

Ion Channel GatingAmino Acid SequenceArabidopsisArabidopsis ProteinsMolecular Sequence DataPotassium Channels, Inwardly RectifyingProtein Interaction Domains and MotifsQa-SNARE ProteinsArabidopsis ProteinsPEN1 protein, ArabidopsisPotassium Channels, Inwardly RectifyingQa-SNARE Proteins

Identifiers

PMID20884800
PMCPMC2965544

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.