ArticleNucleic acids research2004
Genetic and biochemical analyses of Pfh1 DNA helicase function in fission yeast.
Article in Nucleic acids research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
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.
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.
Who cites it
46 citing papers in PubMed, 54 citations in OpenAlex.
- 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 · 2026Article
- Pif1 family helicases promote mutation avoidance during DNA replication.Nucleic acids research · 2022Article
- Role and Regulation of Pif1 Family Helicases at the Replication Fork.International journal of molecular sciences · 2022Review
- Review
- The secondary-structured DNA-binding activity of Dna2 endonuclease/helicase is critical to cell growth under replication stress.The FEBS journal · 2021Article
- CRL4Cdt2 ubiquitin ligase regulates Dna2 and Rad16 (XPF) nucleases by targeting Pxd1 for degradation.PLoS genetics · 2020Article
- Review
- Multiple roles of DNA2 nuclease/helicase in DNA metabolism, genome stability and human diseases.Nucleic acids research · 2020Review
- Branched unwinding mechanism of the Pif1 family of DNA helicases.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Pif1 family DNA helicases: A helpmate to RNase H?DNA repair · 2019Review
- TheGenetics · 2019Article
- Article
- The Pif1 signature motif of Pfh1 is necessary for both protein displacement and helicase unwinding activities, but is dispensable for strand-annealing activity.Nucleic acids research · 2018Article
- The functions of the multi-tasking Pfh1Current genetics · 2017Review
- Transcription-replication conflicts at chromosomal fragile sites-consequences in M phase and beyond.Chromosoma · 2017Review
- A novel role of the Dna2 translocase function in DNA break resection.Genes & development · 2017Article
- G-rich telomeric and ribosomal DNA sequences from the fission yeast genome form stable G-quadruplex DNA structures in vitro and are unwound by the Pfh1 DNA helicase.Nucleic acids research · 2016Article
- Pif1 is a force-regulated helicase.Nucleic acids research · 2016Article
- Fission yeast Pxd1 promotes proper DNA repair by activating Rad16XPF and inhibiting Dna2.PLoS biology · 2014Article
- To peep into Pif1 helicase: multifaceted all the way from genome stability to repair-associated DNA synthesis.Journal of microbiology (Seoul, Korea) · 2014Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Schizosaccharomyces pombe pfh1+ gene (PIF1 homolog) encodes an essential enzyme that has both DNA helicase and ATPase activities and is implicated in lagging strand DNA processing. Mutations in the pfh1+ gene suppress a temperature-sensitive allele of cdc24+, which encodes a protein that functions with Schizosaccharomyces pombe Dna2 in Okazaki fragment processing. In this study, we describe the enzymatic properties of the Pfh1 helicase and the genetic interactions between pfh1 and cdc24, dna2, cdc27 or pol 3, all of which are involved in the Okazaki fragment metabolism. We show that a full-length Pfh1 fusion protein is active as a monomer. The helicase activity of Pfh1 displaced only short (<30 bp) duplex DNA regions efficiently in a highly distributive manner and was markedly stimulated by the presence of a replication-fork-like structure in the substrate. The temperature-sensitive phenotype of a dna2-C2 or a cdc24-M38 mutant was suppressed by pfh1-R20 (a cold-sensitive mutant allele of pfh1) and overexpression of wild-type pfh1+ abolished the ability of the pfh1 mutant alleles to suppress dna2-C2 and cdc24-M38. Purified Pfh1-R20 mutant protein displayed significantly reduced ATPase and helicase activities. These results indicate that the simultaneous loss-of-function mutations of pfh1+ and dna2+ (or cdc24+) are essential to restore the growth defect. Our genetic data indicate that the Pfh1 DNA helicase acts in concert with Cdc24 and Dna2 to process single-stranded DNA flaps generated in vivo by pol -mediated lagging strand displacement DNA synthesis.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.