Evidence map›Paper›PMID 12670970›Full record

ArticleJournal of bacteriology2003

Bacteriophage SPP1 Chu is an alkaline exonuclease in the SynExo family of viral two-component recombinases.

Trina S Vellani, Richard S Myers

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Microbiology spectrum · 2024
    Article
  6. Article
  7. Microbiology spectrum · 2023
    Article
  8. Article
  9. Proteomic Characterization of Virulence Factors and Related Proteins inInternational journal of molecular sciences · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Structure and mechanism of the Red recombination system of bacteriophage λ.Progress in biophysics and molecular biology · 2019
    Review
  14. Article
  15. Complete Genome Sequences ofGenome announcements · 2017
    Article
  16. Article
  17. Review
  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

2 authors at 1 institution in 1 country.

Trina S VellaniDepartment of Biochemistry and Molecular Biology, University of Miami School of Medicine, Miami, Florida 33101-6129, USA.
Richard S Myers
University of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many DNA viruses concatemerize their genomes as a prerequisite to packaging into capsids. Concatemerization arises from either replication or homologous recombination. Replication is already the target of many antiviral drugs, and viral recombinases are an attractive target for drug design, particularly for combination therapy with replication inhibitors, due to their important supporting role in viral growth. To dissect the molecular mechanisms of viral recombination, we and others previously identified a family of viral nucleases that comprise one component of a conserved, two-component viral recombination system. The nuclease component is related to the exonuclease of phage lambda and is common to viruses with linear double-stranded DNA genomes. To test the idea that these viruses have a common strategy for recombination and genome concatemerization, we isolated the previously uncharacterized 34.1 gene from Bacillus subtilis phage SPP1, expressed it in Escherichia coli, purified the protein, and determined its enzymatic properties. Like lambda exonuclease, Chu (the product of 34.1) forms an oligomer, is a processive alkaline exonuclease that digests linear double-stranded DNA in a Mg(2+)-dependent reaction, and shows a preference for 5'-phosphorylated DNA ends. A model for viral recombination, based on the phage lambda Red recombination system, is proposed.

Indexed as

5' Untranslated RegionsBacillus PhagesBacillus subtilisCations, DivalentCloning, MolecularDNA, ViralEscherichia coliExonucleasesHydrogen-Ion ConcentrationMagnesiumRecombinant ProteinsRecombination, GeneticSubstrate Specificity5' Untranslated Regionsbacteriophage SPP1 Chu exonucleaseCations, DivalentDNA, ViralExonucleasesMagnesiumRecombinant Proteins

Identifiers

PMID12670970
PMCPMC152610
OpenAlexW2089295561

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.