Evidence map›Paper›PMID 12399494›Full record

ArticleJournal of bacteriology2002

Phenotypes of lexA mutations in Salmonella enterica: evidence for a lethal lexA null phenotype due to the Fels-2 prophage.

Kim Bunny, Jing Liu, John Roth

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Isolation and characterization of lytic bacteriophages against Staphylococcus aureus.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Recombineering in Non-Model Bacteria.Current protocols · 2022
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Exploring the feasibility ofJournal of animal science and technology · 2020
    Article
  15. Article
  16. Article
  17. Discovery of recombinases enables genome mining of cryptic biosynthetic gene clusters in Burkholderiales species.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

3 authors at 1 institution in 1 country.

Kim BunnyDepartment of Biology, University of Utah, Salt Lake City 84112, USA.
Jing Liu
John Roth
University of Utah · US

Funding

BIOSYNTHESIS OF VITAMIN B12 AND ANAEROBIC METABOLISMR01GM034804 · NIGMS · UNIVERSITY OF UTAH · PI ROTH, JOHN R · 1985 to 2004
$1.3M
NIGMS NIH HHS GM34804NIGMS NIH HHS R01 GM034804
6 · The paper itself

Abstract

The LexA protein of Escherichia coli represses the damage-inducible SOS regulon, which includes genes for repair of DNA. Surprisingly, lexA null mutations in Salmonella enterica are lethal even with a sulA mutation, which corrects lexA lethality in E. coli. Nine suppressors of lethality isolated in a sulA mutant of S. enterica had lost the Fels-2 prophage, and seven of these (which grew better) had also lost the Gifsy-1 and Gifsy-2 prophages. All three phage genomes included a homologue of the tum gene of coliphage 186, which encodes a LexA-repressed cI antirepressor. The tum homologue of Fels-2 was responsible for lexA lethality and had a LexA-repressed promoter. This basis of lexA lethality was unexpected because the four prophages of S. enterica LT2 are not strongly UV inducible and do not sensitize strains to UV killing. In S. enterica, lexA(Ind(-)) mutants have the same phenotypes as their E. coli counterparts. Although lexA null mutants express their error-prone DinB polymerase constitutively, they are not mutators in either S. enterica or E. coli.

Indexed as

MutationBacterial ProteinsEscherichia coliGene DeletionGene Expression Regulation, BacterialLexA Repressor ProteinPhenotypeProphagesSalmonella entericaSalmonella PhagesSerine EndopeptidasesSOS Response, GeneticsTransduction, GeneticUltraviolet RaysViral ProteinsBacterial ProteinsLexA Repressor ProteinSerine EndopeptidasesViral Proteins

Identifiers

PMID12399494
PMCPMC151935
OpenAlexW2155135883

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.