Evidence map›Paper›PMID 9045811›Full record

ArticleJournal of bacteriology1997

Catabolite inactivation of the galactose transporter in the yeast Saccharomyces cerevisiae: ubiquitination, endocytosis, and degradation in the vacuole.

J Horak, D H Wolf

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

39 citing papers in PubMed, 129 citations in OpenAlex.

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  6. TheBiotechnology for biofuels · 2018
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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

2 authors at 1 institution in 1 country.

J HorakInstitute of Physiology, Department of Membrane Transport, Academy of Sciences of the Czech Republic, Prague.
D H Wolf
Czech Academy of Sciences, Institute of Sociology · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

When Saccharomyces cerevisiae cells growing on galactose are transferred onto glucose medium containing cycloheximide, an inhibitor of protein synthesis, a rapid reduction of Gal2p-mediated galactose uptake is observed. We show that glucose-induced inactivation of Gal2p is due to its degradation. Stabilization of Gal2p in pra1 mutant cells devoid of vacuolar proteinase activity is observed. Subcellular fractionation and indirect immunofluorescence showed that the Gal2 transporter accumulates in the vacuole of the mutant cells, directly demonstrating that its degradation requires vacuolar proteolysis. In contrast, Gal2p degradation is proteasome independent since its half-life is unaffected in pre1-1 pre2-2, cim3-1, and cim5-1 mutants defective in several subunits of the protease complex. In addition, vacuolar delivery of Gal2p was shown to be blocked in conditional end3 and end4 mutants at the nonpermissive temperature, indicating that delivery of Gal2p to the vacuole occurs via the endocytic pathway. Taken together, the results presented here demonstrate that glucose-induced proteolysis of Gal2p is dependent on endocytosis and vacuolar proteolysis and is independent of the functional proteasome. Moreover, we show that Gal2p is ubiquitinated under conditions of glucose-induced inactivation.

Indexed as

Cytoskeletal ProteinsEndocytosisSaccharomyces cerevisiae ProteinsAzidesCycloheximideCytoplasmFungal ProteinsGalactoseGlucoseMonosaccharide Transport ProteinsProtein Synthesis InhibitorsSaccharomyces cerevisiaeSodium AzideTemperatureUbiquitinsVacuolesAzidesCycloheximideCytoskeletal ProteinsEND3 protein, S cerevisiaeFungal ProteinsGalactoseGlucoseMonosaccharide Transport ProteinsProtein Synthesis InhibitorsSaccharomyces cerevisiae ProteinsSodium AzideUbiquitins

Identifiers

PMID9045811
PMCPMC178864
OpenAlexW2149700055

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.