Evidence map›Paper›PMID 12409464›Full record

ArticleNucleic acids research2002

The fission yeast pfh1(+) gene encodes an essential 5' to 3' DNA helicase required for the completion of S-phase.

Hiroyuki Tanaka, Gi-Hyuck Ryu, Yeon-Soo Seo, Koichi Tanaka, Hiroto Okayama, Stuart A MacNeill, Yasuhito Yuasa

Open access · bronzeAbstract read
In one paragraph

Article in Nucleic acids research, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

37 citing papers in PubMed, 43 citations in OpenAlex.

  1. Regulation of Pfh1 helicase activity by nucleic acid interactions and mitochondrial SSB.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  4. TheGenetics · 2019
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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

7 authors at 1 institution in 1 country.

Hiroyuki TanakaWellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, King's Buildings, Mayfield Road, Edinburgh EH9 3JR, UK. hiroyuki.tanaka@ed.ac.uk
Gi-Hyuck Ryu
Yeon-Soo Seo
Koichi Tanaka
Hiroto Okayama
Stuart A MacNeill
Yasuhito Yuasa
University of Edinburgh · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The Cdc24 protein plays an essential role in chromosomal DNA replication in the fission yeast Schizosaccharomyces pombe, most likely via its direct interaction with Dna2, a conserved endonuclease-helicase protein required for Okazaki fragment processing. To gain insights into Cdc24 function, we isolated cold-sensitive chromosomal suppressors of the temperature-sensitive cdc24-M38 allele. One of the complementation groups of such suppressors defined a novel gene, pfh1(+), encoding an 805 amino acid nuclear protein highly homologous to the Saccharomyces cerevisiae Pif1p and Rrm3p DNA helicase family proteins. The purified Pfh1 protein displayed single-stranded DNA-dependent ATPase activity as well as 5' to 3' DNA helicase activity in vitro. Reverse genetic analysis in S.pombe showed that helicase activity was essential for the function of the Pfh1 protein in vivo. Schizosaccharomyces pombe cells carrying the cold-sensitive pfh1-R20 allele underwent cell cycle arrest in late S/G2-phase of the cell cycle when shifted to the restrictive temperature. This arrest was dependent upon the presence of a functional late S/G2 DNA damage checkpoint, suggesting that Pfh1 is required for the completion of DNA replication. Furthermore, at their permissive temperature pfh1-R20 cells were highly sensitive to the DNA-alkylating agent methyl methanesulphonate, implying a further role for Pfh1 in the repair of DNA damage.

Indexed as

S PhaseAdenosine TriphosphatasesAllelesCatalysisCell Cycle ProteinsCell NucleusConserved SequenceDNA DamageDNA, FungalDNA HelicasesDNA RepairDNA ReplicationG2 PhaseGene DeletionGenes, EssentialGenes, FungalAdenosine TriphosphatasesCdc24 protein, S pombeCell Cycle ProteinsDNA, FungalDNA HelicasesHydroxyureaMethyl MethanesulfonateNuclear ProteinsPfh1 protein, S pombeRNA, FungalSchizosaccharomyces pombe Proteins

Identifiers

PMID12409464
PMCPMC135800
OpenAlexW1994495961

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.