Evidence map›Paper›PMID 8381962›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1993

Futile cycles in Saccharomyces cerevisiae strains expressing the gluconeogenic enzymes during growth on glucose.

M A Navas, S Cerdán, J M Gancedo

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 75 citations in OpenAlex.

  1. The return of metabolism: biochemistry and physiology of glycolysis.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
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  7. History and Domestication ofFrontiers in genetics · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

M A NavasInstituto de Investigaciones Biomédicas, Consejo Superior de Investigaciones Cientificas, Madrid, Spain.
S Cerdán
J M Gancedo
Consejo Superior de Investigaciones Científicas · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The systems which control the levels of the gluconeogenic enzymes in Saccharomyces cerevisiae have been bypassed to ascertain their physiological significance. The coding regions of the genes FBP1 and PCK1, which encode fructose-1,6-bisphosphatase and phosphoenolpyruvate carboxykinase, have been put under the control of the promoter of ADC1 (alcohol dehydrogenase I), a gene not repressed by glucose, and introduced into yeast in multicopy plasmids. The transformed yeast cells show high levels of the gluconeogenic enzymes during growth on glucose. Generation time and growth yield of yeast expressing either fructose-1,6-bisphosphatase or phosphoenolpyruvate carboxykinase are not significantly different from those of the wild-type strain. For a strain expressing both enzymes the increase in generation time is about 20% and the decrease in growth yield around 30%. The concentration of ATP is about 1.5 mM in the growing cells of the different strains. The extent of in vivo cycling was measured by 13C NMR in cell-free extracts from yeast growing on [6-13C]glucose. Cycling between fructose-6-phosphate and fructose-1,6-bisphosphate is < 2%, most likely due to the very strong inhibition of fructose-1,6-bisphosphatase by fructose 2,6-bisphosphate. Cycling between phosphoenolpyruvate and pyruvate is low, but a precise figure could not be obtained due to poor equilibration of label between carbons 2 and 3 of oxaloacetate.

Indexed as

GluconeogenesisAdenine NucleotidesAlcohol DehydrogenaseBase SequenceDNA, RecombinantFructose-BisphosphataseGene Expression Regulation, EnzymologicGene Expression Regulation, FungalGenes, BacterialGlucoseKineticsMolecular Sequence DataMutagenesis, Site-DirectedOligodeoxyribonucleotidesPhosphoenolpyruvate Carboxykinase (GTP)PlasmidsAdenine NucleotidesAlcohol DehydrogenaseDNA, RecombinantFructose-BisphosphataseGlucoseOligodeoxyribonucleotidesPhosphoenolpyruvate Carboxykinase (GTP)

Identifiers

PMID8381962
PMCPMC45858
OpenAlexW2164029680

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.