Evidence map›Paper›PMID 19218424›Full record

ArticleEukaryotic cell2009

Degradation of Saccharomyces cerevisiae transcription factor Gcn4 requires a C-terminal nuclear localization signal in the cyclin Pcl5.

Katrin Streckfuss-Bömeke, Florian Schulze, Britta Herzog, Eva Scholz, Gerhard H Braus

Abstract read
In one paragraph

Article in Eukaryotic cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. 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

5 authors.

Katrin Streckfuss-BömekeInstitute of Microbiology and Genetics, Georg August University, Göttingen, Germany.
Florian Schulze
Britta Herzog
Eva Scholz
Gerhard H Braus

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pcl5 is a Saccharomyces cerevisiae cyclin that directs the phosphorylation of the general amino acid control transcriptional activator Gcn4 by the cyclin-dependent kinase (CDK) Pho85. Phosphorylation of Gcn4 by Pho85/Pcl5 initiates its degradation via the ubiquitin/proteasome system and is regulated by the availability of amino acids. In this study, we show that Pcl5 is a nuclear protein and that artificial dislocation of Pcl5 into the cytoplasm prevents the degradation of Gcn4. Nuclear localization of Pcl5 depends on the beta-importin Kap95 and does not require Pho85, Gcn4, or the CDK inhibitor Pho81. Pcl5 nuclear import is independent on the availability of amino acids and is mediated by sequences in its C-terminal domain. The nuclear localization signal is distinct from other functional domains of Pcl5. This is corroborated by a C-terminally truncated Pcl5 variant, which carries the N-terminal nuclear domain of Pho80. This hybrid is still able to fulfill Pcl5 function, whereas Pho80, which is another Pho85 interacting cyclin, does not mediate Gcn4 degradation.

Indexed as

Nuclear Localization SignalsActive Transport, Cell NucleusBasic-Leucine Zipper Transcription FactorsCyclinsCytoplasmMutationNuclear ProteinsProtein Structure, TertiaryProtein TransportSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsBasic-Leucine Zipper Transcription FactorsCyclinsGCN4 protein, S cerevisiaeNuclear Localization SignalsNuclear ProteinsPCL5 protein, S cerevisiaeSaccharomyces cerevisiae Proteins

Identifiers

PMID19218424
PMCPMC2669204

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.