Evidence map›Paper›PMID 10710432›Full record

ArticleNucleic acids research2000

Human RecQ5beta, a large isomer of RecQ5 DNA helicase, localizes in the nucleoplasm and interacts with topoisomerases 3alpha and 3beta.

A Shimamoto, K Nishikawa, S Kitao, Y Furuichi

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Nucleic acids research, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

64 citing papers in PubMed, 141 citations in OpenAlex.

  1. Review
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  7. Article
  8. Human RecQ Helicases in DNA Double-Strand Break Repair.Frontiers in cell and developmental biology · 2021
    Review
  9. Review
  10. RECQL5 at theFrontiers in cell and developmental biology · 2020
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
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  20. Article

4 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

A ShimamotoAGENE Research Institute, 200 Kajiwara Kamakura, Kanagawa 247-0063, Japan.
K Nishikawa
S Kitao
Y Furuichi
GeneCare Research Institute (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The RecQ helicase superfamily has been implicated in DNA repair and recombination. At least five human RecQ-related genes exist: RecQ1, BLM, WRN, RecQ4 and RecQ5. Mutations in BLM, WRN and RecQ4 are associated with Bloom, Werner and Rothmund-Thomson syndromes, respectively, involving a predisposition to malignancies and a cellular phenotype that includes increased chromosome instability. RecQ5 is small, containing only a core part of the RecQ helicase, but three isomer transcripts code for small RecQ5alpha (corresponding to the original RecQ5 with 410 amino acids), new large RecQ5beta (991 amino acids) and small RecQ5gamma (435 amino acids) proteins that contain the core helicase motifs. By determining the genomic structure, we found that the three isoforms are generated by differential splicing from the RecQ5 gene that contains at least 19 exons. Northern blot analysis using a RecQ5beta-specific probe indicates that RecQ5beta mRNA is expressed strongly in the testis. Immunocytochemical staining of three N-terminally tagged RecQ5 isomers expressed in 293EBNA cells showed that RecQ5beta migrates to the nucleus and exists exclusively in the nucleoplasm, while the small RecQ5alpha and RecQ5gamma proteins stay in the cytoplasm. Immunoprecipitation and an extended cytochemical experiment suggested that the nucleoplasmic RecQ5beta, like yeast Sgs1 DNA helicase, binds to topoisomerases 3alpha and 3beta, but not to topoisomerase 1. These results predict that RecQ5beta may have an important role in DNA metabolism and may also be related to a distinct genetic disease.

Indexed as

Alternative SplicingAmino Acid SequenceAnimalsBase SequenceCell NucleusDNA, ComplementaryDNA HelicasesDNA PrimersDNA Topoisomerases, Type IExonsHumansIsoenzymesMaleMolecular Sequence DataMutationRecQ HelicasesDNA, ComplementaryDNA HelicasesDNA PrimersDNA Topoisomerases, Type IIsoenzymesRecQ HelicasesRECQL5 protein, humanRNA, Messenger

Identifiers

PMID10710432
PMCPMC102787
OpenAlexW2001193188

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.