Evidence map›Paper›PMID 10500195›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

CDC45 and DPB11 are required for processive DNA replication and resistance to DNA topoisomerase I-mediated DNA damage.

R J Reid, P Fiorani, M Sugawara, M A Bjornsti

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

22 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Irinotecan pharmacogenomics.Pharmacogenomics · 2010
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Repair of topoisomerase I-mediated DNA damage.Progress in nucleic acid research and molecular biology · 2006
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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 2 institutions in 1 country.

R J ReidDepartment of Biochemistry, Thomas Jefferson University, Philadelphia, PA 19107, USA.
P Fiorani
M Sugawara
M A Bjornsti
St. Jude Children's Research Hospital · USThomas Jefferson University · US

Funding

DNA TOPOISOMERASE-CAMPTOTHECIN INTERACTIONSR01CA058755 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BJORNSTI, MARY-ANN · 1993 to 2011
$3.2M
MECHANISMS OF SUPPRESSING CAMPTOTHECIN TOXICITYR01CA070406 · NCI · THOMAS JEFFERSON UNIVERSITY · PI BJORNSTI, MARY-ANN · 1996 to 2003
$1.2M
NCI NIH HHS CA21675NCI NIH HHS CA58755NCI NIH HHS CA70406NCI NIH HHS R01 CA058755NCI NIH HHS R01 CA070406
6 · The paper itself

Abstract

The antitumor agent camptothecin targets DNA topoisomerase I by reversibly stabilizing a covalent enzyme-DNA intermediate. The subsequent collision of DNA replication forks with these drug-enzyme-DNA complexes produces the cytotoxic DNA lesions that signal cell cycle arrest and ultimately lead to cell death. Despite intense investigation, the character of the lesions produced and the repair processes that resolve the damage remain poorly defined. A yeast genetic screen was implemented to isolate conditional mutants with enhanced sensitivity to DNA topoisomerase I-mediated DNA damage. Cells exhibiting temperature-sensitive growth in the presence of the DNA topoisomerase I mutant, Top1T722Ap, were selected. Substitution of Ala for Thr722 increases the stability of the covalent Top1T722Ap-DNA intermediate, mimicking the cytotoxic action of camptothecin. Two mutants isolated, cdc45-10 and dpb11-10, exhibited specific defects in DNA replication and a synthetic lethal phenotype in the absence of DNA damaging agents. The accumulation of Okazaki fragments under nonpermissive conditions suggests a common function in promoting processive DNA replication through polymerase switching. These results provide a mechanistic basis for understanding the cellular processes involved in the resolution of DNA damage induced by camptothecin and DNA topoisomerase I.

Indexed as

DNA-Binding ProteinsDNA DamageDNA ReplicationSaccharomyces cerevisiae ProteinsCamptothecinCarrier ProteinsCell Cycle ProteinsDNA Topoisomerases, Type IMutationNuclear ProteinsCamptothecinCarrier ProteinsCDC45 protein, S cerevisiaeCell Cycle ProteinsDNA-Binding ProteinsDNA Topoisomerases, Type IDPB11 protein, S cerevisiaeNuclear ProteinsSaccharomyces cerevisiae Proteins

Identifiers

PMID10500195
PMCPMC18052
OpenAlexW2079948201

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.