Evidence map›Paper›PMID 28946905›Full record

ArticleMicrobial cell factories2017

Metabolic adjustment upon repetitive substrate perturbations using dynamic

C A Suarez-Mendez, C Ras, S A Wahl

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

8 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Trainable computation in molecular networks.bioRxiv : the preprint server for biology · 2025
    Article
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  7. Kinetic Modeling ofMetabolites · 2022
    Review
  8. 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 3 institutions in 2 countries.

C A Suarez-MendezDepartment of Biotechnology, Delft University of Technology, Van der Maasweg, 92629 HZ, Delft, The Netherlands. casuarezmendez@unal.edu.co.
C RasDepartment of Biotechnology, Delft University of Technology, Van der Maasweg, 92629 HZ, Delft, The Netherlands.
S A WahlDepartment of Biotechnology, Delft University of Technology, Van der Maasweg, 92629 HZ, Delft, The Netherlands. s.a.wahl@tudelft.nl.ORCID http://orcid.org/0000-0003-2120-1859
Cancer Genomics Centre · NLDelft University of Technology · NLUniversidad Nacional de Colombia · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNatural and industrial environments are dynamic with respect to substrate availability and other conditions like temperature and pH. Especially, metabolism is strongly affected by changes in the extracellular space. Here we study the dynamic flux of central carbon metabolism and storage carbohydrate metabolism under dynamic feast/famine conditions in Saccharomyces cerevisiae.

resultsThe metabolic flux reacts fast and sensitive to cyclic perturbations in substrate availability. Compared to well-documented stimulus-response experiments using substrate pulses, different metabolic responses are observed. Especially, cells experiencing cyclic perturbations do not show a drop in ATP with the addition of glucose, but an immediate increase in energy charge. Although a high glycolytic flux of up to 5.4 mmol g

conclusionsComparable to electric energy grids, metabolism seems to use storage units to buffer peaks and keep reserves to maintain a robust function. During the applied fast feast/famine conditions about 15% of the metabolized carbon were recycled in storage metabolism. Additionally, the resources were distributed different to steady-state conditions. Most remarkably is a fivefold increased flux towards PPP that generated a reversed flux of transaldolase and the F6P-producing transketolase reactions. Combined with slight changes in the biomass composition, the yield decrease of 5% can be explained.

Indexed as

Carbon IsotopesGlucoseGlycogenGlycolysisIsotope LabelingSaccharomyces cerevisiaeTrehaloseCarbon IsotopesGlucoseGlycogenTrehalose13C labelingDynamic fluxesMetabolomicsMultiple perturbationsStorage carbohydratesSystems biologyYeast

Identifiers

PMID28946905
PMCPMC5613340
OpenAlexW2760062280

What OpenQuestion holds

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LicenceCC BY
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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.