Evidence map›Paper›PMID 7705652›Full record

ArticleGenetics1995

Extra telomeres, but not internal tracts of telomeric DNA, reduce transcriptional repression at Saccharomyces telomeres.

E A Wiley, V A Zakian

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.5field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 45 citations in OpenAlex.

  1. Continuous recording of vital signs with a wearable device in pediatric patients undergoing chemotherapy for cancer-an operational feasibility study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
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  14. The yeast Cac1 protein is required for the stable inheritance of transcriptionally repressed chromatin at telomeres.Proceedings of the National Academy of Sciences of the United States of America · 1997
    Article
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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.

E A WileyFred Hutchinson Cancer Research Center, Seattle, Washington 98104.
V A Zakian
Fred Hutch Cancer Center · US

Funding

STRUCTURE &BEHAVIOR OF YEAST TELOMERESR01GM043265 · NIGMS · PRINCETON UNIVERSITY · PI ZAKIAN, VIRGINIA A. · 1990 to 2015
$7.6M
NIA NIH HHS AG-00057NIGMS NIH HHS GM-43265
6 · The paper itself

Abstract

Yeast telomeric DNA is assembled into a nonnucleosomal chromatin structure known as the telosome, which is thought to influence the transcriptional repression of genes placed in its vicinity, a phenomenon called telomere position effect (TPE). The product of the RAP1 gene, Rap1p, is a component of the telosome. We show that the fraction of cells exhibiting TPE can be substantially reduced by expressing large amounts of a deletion derivative of Rap1p that is unable to bind DNA, called Rap1 delta BBp, or by introducing extra telomeres on a linear plasmid, presumably because both compete in trans with telomeric chromatin for factor(s) important for TPE. This reduction in TPE, observed in three different strains, was demonstrated for two different genes, each assayed at a different telomere. In contrast, the addition of internal tracts of telomeric DNA on a circular plasmid had very little effect on TPE. The product of the SIR3 gene, Sir3p, appears to be limiting for TPE. Overexpression of Sir3p completely suppressed the reduction in TPE observed with expression of Rap1 delta BBp, but did not restore high levels of TPE to cells with extra telomeres. These results suggest that extra telomeres must titrate a factor other than Sir3p that is important for TPE. These results also provide evidence for a terminus-specific binding factor that is a factor with a higher affinity for DNA termini than for nonterminal tracts of telomeric DNA and indicate that this factor is important for TPE.

Indexed as

Gene Expression Regulation, FungalSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeTelomere-Binding ProteinsTranscription, GeneticDNA-Binding ProteinsDNA, FungalFungal ProteinsGTP-Binding Proteinsrap GTP-Binding ProteinsRepressor ProteinsSaccharomycesSpecies SpecificityTelomereTrans-ActivatorsDNA-Binding ProteinsDNA, FungalFungal ProteinsGTP-Binding Proteinsrap GTP-Binding ProteinsRepressor ProteinsRIF1 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsSilent Information Regulator Proteins, Saccharomyces cerevisiaeSIR3 protein, S cerevisiaeTelomere-Binding ProteinsTrans-Activators

Identifiers

PMID7705652
PMCPMC1206349
OpenAlexW2129709344

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.