Evidence map›Paper›PMID 22388927›Full record

ArticleNature chemical biology2012

Peptides induce persistent signaling from endosomes by a nutrient transceptor.

Marta Rubio-Texeira, Griet Van Zeebroeck, Johan M Thevelein

Abstract read
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In one paragraph

Article in Nature chemical biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 24% 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

15 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
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  5. Article
  6. Nitrate Assimilation inFrontiers in microbiology · 2017
    Article
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  12. Review
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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

3 authors at 1 institution in 1 country.

Marta Rubio-TexeiraLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Flanders, Belgium.
Griet Van Zeebroeck
Johan M Thevelein
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The yeast Gap1 transceptor mediates amino acid activation of the protein kinase A pathway and undergoes endocytic internalization following amino acid transport. We identified three specific γ-glutamyl dipeptides that cause persistent cyclic AMP-independent activation of protein kinase A, prevent Gap1 vacuolar sorting and cause Gap1 accumulation in endosomes. To our knowledge, these are the first examples of persistent agonists of a transceptor. In yeast mutants blocked in multivesicular body sorting, L-citrulline mimicked persistent signaling, further supporting that the internalized Gap1 transceptor keeps signaling. Unexpectedly, these dipeptides were transported by Gap1 and not by the regular dipeptide transporters. Their uptake was unusually sensitive to external pH and caused transient intracellular acidification. High external pH, NHA1 deletion or V-ATPase inhibition overcame the vacuolar sorting defect. Hence, this work has identified specific dipeptides that cause enhanced proton influx through the Gap1 symporter, resulting in its defective vacuolar sorting, and independently transform it into a persistently signaling transceptor.

Indexed as

Amino Acid Transport SystemsCation Transport ProteinsCitrullineCyclic AMPCyclic AMP-Dependent Protein KinasesCytosolDipeptidesEndosomesEnzyme ActivationHydrogen-Ion ConcentrationProtein TransportSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSignal TransductionSodium-Hydrogen ExchangersVacuolesAmino Acid Transport SystemsCation Transport ProteinsCitrullineCyclic AMPCyclic AMP-Dependent Protein KinasesDipeptidesGAP1 protein, S cerevisiaeNHA1 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsSodium-Hydrogen Exchangers

Identifiers

PMID22388927
OpenAlexW1966324092

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.