Evidence map›Paper›PMID 28810702›Full record

ArticleFEMS yeast research2017

The nutrient transceptor/PKA pathway functions independently of TOR and responds to leucine and Gcn2 in a TOR-independent manner.

Michaela Conrad, Harish Nag Kankipati, Marlies Kimpe, Griet Van Zeebroeck, Zhiqiang Zhang, Johan M Thevelein

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In one paragraph

Article in FEMS yeast research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.2field-weighted citation impact, top 44% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Michaela ConradLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
Harish Nag KankipatiLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
Marlies KimpeLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
Griet Van ZeebroeckLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
Zhiqiang ZhangLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
Johan M TheveleinLaboratory of Molecular Cell Biology, Institute of Botany and Microbiology, B-3001 KU Leuven, Belgium.
KU Leuven · BEVIB-KU Leuven Center for Microbiology · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two nutrient-controlled signalling pathways, the PKA and TOR pathway, play a major role in nutrient regulation of growth as well as growth-correlated properties in yeast. The relationship between the two pathways is not well understood. We have used Gap1 and Pho84 transceptor-mediated activation of trehalase and phosphorylation of fragmented Sch9 as a read-out for rapid nutrient activation of PKA or TORC1, respectively. We have identified conditions in which L-citrulline-induced activation of Sch9 phosphorylation is compromised, but not activation of trehalase: addition of the TORC1 inhibitor, rapamycin and low levels of L-citrulline. The same disconnection was observed for phosphate activation in phosphate-starved cells. The leu2 auxotrophic mutation reduces amino acid activation of trehalase, which is counteracted by deletion of GCN2. Both effects were also independent of TORC1. Our results show that rapid activation of the TOR pathway by amino acids is not involved in rapid activation of the PKA pathway and that effects of Gcn2 inactivation as well as leu2 auxotrophy all act independently of the TOR pathway. Hence, rapid nutrient signalling to PKA and TOR in cells arrested by nutrient starvation acts through parallel pathways.

Indexed as

Amino Acid Transport SystemsCyclic AMP-Dependent Protein KinasesLeucinePhosphorylationProtein Processing, Post-TranslationalProtein Serine-Threonine KinasesProton-Phosphate SymportersSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSignal TransductionTranscription FactorsAmino Acid Transport SystemsCyclic AMP-Dependent Protein KinasesGAP1 protein, S cerevisiaeLeucinePHO84 protein, S cerevisiaeProtein Serine-Threonine KinasesProton-Phosphate SymportersSaccharomyces cerevisiae ProteinsSCH9 protein, S cerevisiaetarget of rapamycin protein, S cerevisiaeTORC1 protein complex, S cerevisiaeTranscription FactorsGcn2nutrient signallingPKA pathwayTOR pathwaytransceptor

Identifiers

PMID28810702
PMCPMC5812495
OpenAlexW2736144257

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.