Evidence map›Paper›PMID 22027592›Full record

ArticleNature communications2011

The NMR structure of stomagen reveals the basis of stomatal density regulation by plant peptide hormones.

Shinya Ohki, Makoto Takeuchi, Masashi Mori

Open access · hybridAbstract read
PubMed Publisher
In one paragraph

Article in Nature communications, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

59 citing papers in PubMed, 125 citations in OpenAlex.

  1. Review
  2. Plant subtilases as key initiators of peptide ligand-receptor signaling.The Plant journal : for cell and molecular biology · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Peptide hormones in plants.Molecular horticulture · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Frontiers in plant science · 2022
    Article
  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

3 authors at 2 institutions in 1 country.

Shinya OhkiCenter for Nano Materials and Technology (CNMT), Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahidai, Nomi-shi, Ishikawa 923-1292, Japan. shinya-o@jaist.ac.jp
Makoto Takeuchi
Masashi Mori
Japan Advanced Institute of Science and Technology · JPIshikawa Prefectural University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stomatal development in plants is regulated by defensin-like secretory epidermal patterning factor (EPF) peptide hormones. Only one of these, stomagen, is a positive regulator, whereas EPF1, EPF2, and possibly others are negative regulators. Here we explore the structure-function relationships of EPFs, by integrating NMR and semi-in vitro stomagen experiments. We show that stomagen is composed of a loop and a scaffold containing three disulphide bonds. A mutant composed of the stomagen loop and the EPF2 scaffold positively regulates the stomatal density on Arabidopsis cotyledons. The reciprocal mutant composed of the EPF2 loop and the stomagen scaffold acts negatively. Deletion of the disulphide bond introduces unfolding and inactivity. Our results suggest that the loop confers the functional specificity of EPFs and that the scaffold is structurally required for their activity. This structural decomposition approach to elucidating the functional site could be adapted for the analysis of other cysteine-rich peptide families.

Indexed as

Nuclear Magnetic Resonance, BiomolecularPlant Growth RegulatorsPlant ProteinsProtein ConformationPlant Growth RegulatorsPlant Proteins

Identifiers

PMID22027592
OpenAlexW2005892352

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.