Evidence map›Paper›PMID 22923674›Full record

ArticleThe Plant cell2012

Contamination risks in work with synthetic peptides: flg22 as an example of a pirate in commercial peptide preparations.

Katharina Mueller, Delphine Chinchilla, Markus Albert, Anna K Jehle, Hubert Kalbacher, Thomas Boller, Georg Felix

Abstract read
In one paragraph

Article in The Plant cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Review
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  5. AtPep3 is a hormone-like peptide that plays a role in the salinity stress tolerance of plants.Proceedings of the National Academy of Sciences of the United States of America · 2018
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  12. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Katharina MuellerZentrum für Molekularbiologie der Pflanzen, University Tübingen, 72076 Tuebingen, Germany.
Delphine Chinchilla
Markus Albert
Anna K Jehle
Hubert Kalbacher
Thomas Boller
Georg Felix

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pattern recognition receptor FLAGELLIN SENSING2 (FLS2) renders plant cells responsive to subnanomolar concentrations of flg22, the active epitope of bacterial flagellin. We recently observed that a preparation of the peptide IDL1, a signal known to regulate abscission processes via the receptor kinases HAESA and HAESA-like2, apparently triggered Arabidopsis thaliana cells in an FLS2-dependent manner. However, closer investigation revealed that this activity was due to contamination by a flg22-type peptide, and newly synthesized IDL1 peptide was completely inactive in FLS2 signaling. This raised alert over contamination events occurring in the process of synthesis or handling of peptides. Two recent reports have suggested that FLS2 has further specificities for structurally unrelated peptides derived from CLV3 and from Ax21. We thus scrutinized these peptides for activity in Arabidopsis cells as well. While responding to <1 nM flg22, Arabidopsis cells proved blind even to 100 μM concentrations of CLV3p and axY(s)22. Our results confirm the exquisite sensitivity and selectivity of FLS2 for flg22. They also show that inadvertent contaminations with flg22-type peptides do occur and can be detected even in trace amounts by FLS2.

Indexed as

ArabidopsisArabidopsis ProteinsBacteriaFlagellinLigandsPeptidesProtein BindingProtein KinasesProtoplastsSignal TransductionSubstrate SpecificityArabidopsis ProteinsAT2G27250 protein, ArabidopsisFlagellinFLS2 protein, ArabidopsisLigandsPeptidesProtein Kinases

Identifiers

PMID22923674
PMCPMC3462625

What OpenQuestion holds

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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.