Evidence map›Paper›PMID 10512858›Full record

ArticleMolecular biology of the cell1999

The Schizosaccharomyces pombe hst4(+) gene is a SIR2 homologue with silencing and centromeric functions.

L L Freeman-Cook, J M Sherman, C B Brachmann, R C Allshire, J D Boeke, L Pillus

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Article in Molecular biology of the cell, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 70 citations in OpenAlex.

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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

6 authors at 4 institutions in 2 countries.

L L Freeman-CookDepartment of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Colorado 80309-0347, USA.
J M Sherman
C B Brachmann
R C Allshire
J D Boeke
L Pillus
University of Colorado Boulder · USJohns Hopkins University · USWashington University in St. Louis · USWestern General Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although silencing is a significant form of transcriptional regulation, the functional and mechanistic limits of its conservation have not yet been established. We have identified the Schizosaccharomyces pombe hst4(+) gene as a member of the SIR2/HST silencing gene family that is defined in organisms ranging from bacteria to humans. hst4Delta mutants grow more slowly than wild-type cells and have abnormal morphology and fragmented DNA. Mutant strains show decreased silencing of reporter genes at both telomeres and centromeres. hst4(+) appears to be important for centromere function as well because mutants have elevated chromosome-loss rates and are sensitive to a microtubule-destabilizing drug. Consistent with a role in chromatin structure, Hst4p localizes to the nucleus and appears concentrated in the nucleolus. hst4Delta mutant phenotypes, including growth and silencing phenotypes, are similar to those of the Saccharomyces cerevisiae HSTs, and at a molecular level, hst4(+) is most similar to HST4. Furthermore, hst4(+) is a functional homologue of S. cerevisiae HST3 and HST4 in that overexpression of hst4(+) rescues the temperature-sensitivity and telomeric silencing defects of an hst3Delta hst4Delta double mutant. These results together demonstrate that a SIR-like silencing mechanism is conserved in the distantly related yeasts and is likely to be found in other organisms from prokaryotes to mammals.

Indexed as

Gene SilencingHistone DeacetylasesSilent Information Regulator Proteins, Saccharomyces cerevisiaeCentromereCloning, MolecularDNA-Binding ProteinsFluorescent Antibody TechniqueFungal ProteinsGene Expression Regulation, FungalGenes, FungalMicroscopy, Phase-ContrastMutationPhenotypeSaccharomyces cerevisiaeSchizosaccharomycesSequence AlignmentDNA-Binding ProteinsFungal ProteinsHistone DeacetylasesSilent Information Regulator Proteins, Saccharomyces cerevisiaeSIR2 protein, S cerevisiaeSirtuin 2SirtuinsTrans-Activators

Identifiers

PMID10512858
PMCPMC25575
OpenAlexW2101117857

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.