Evidence map›Paper›PMID 12871903›Full record

ArticleGenetics2003

Telomerase-independent proliferation is influenced by cell type in Saccharomyces cerevisiae.

Joanna E Lowell, Alexander I Roughton, Victoria Lundblad, Lorraine Pillus

Abstract readComparative Study
In one paragraph

Article in Genetics, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
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  13. Making the most of a little: dosage effects in eukaryotic telomere length maintenance.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2005
    Review
  14. 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

4 authors.

Joanna E LowellDepartment of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, USA.
Alexander I Roughton
Victoria Lundblad
Lorraine Pillus

Funding

NIGMS NIH HHS GM-07135-22
6 · The paper itself

Abstract

Yeast strains harboring mutations in genes required for telomerase function (TLC1 and the EST genes) exhibit progressive shortening of telomeric DNA and replicative senescence. A minority of cells withstands loss of telomerase through RAD52-dependent amplification of telomeric and subtelomeric sequences; such survivors are now capable of long-term propagation with telomeres maintained by recombination rather than by telomerase. Here we report that simultaneous expression in haploid cells of both MATa and MATalpha information suppresses the senescence of telomerase-deficient mutants, with suppression occurring via the RAD52-dependent survivor pathway(s). Such suppression can be mimicked by deletion of SIR1-SIR4, genes that function in transcriptional silencing of several loci including the silent mating-type loci. Furthermore, telomerase-defective diploid strains that express only MATa or MATalpha information senesce at a faster rate than telomerase-defective diploids that are heterozygous at the MAT locus. This suggests that the RAD52-dependent pathway(s) for telomere maintenance respond to changes in the levels of recombination, a process regulated in part by the hierarchy of gene control that includes MAT regulation. We propose that cell-type-specific regulation of recombination at human telomeres may similarly contribute to the tissue-specific patterns of disease found in telomerase-deficient tumors.

Indexed as

AgingBlotting, SouthernDNA-Binding ProteinsElectrophoresis, Agar GelGenes, FungalGene SilencingGenes, Mating Type, FungalHomeodomain ProteinsMutationPlasmidsRad52 DNA Repair and Recombination ProteinRecombination, GeneticRepressor ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeDNA-Binding ProteinsHomeodomain ProteinsMATA1 protein, S cerevisiaeRad52 DNA Repair and Recombination ProteinRAD52 protein, S cerevisiaeRepressor ProteinsSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeTelomerase

Identifiers

PMID12871903
PMCPMC1462614

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.