Evidence map›Paper›PMID 19019141›Full record

ArticleMolecular microbiology2009

Post-transcriptional processing of the LEE4 operon in enterohaemorrhagic Escherichia coli.

Patricia B Lodato, James B Kaper

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.0field-weighted citation impact, top 17% 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

34 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Small RNA Regulation of Virulence in PathogenicFrontiers in cellular and infection microbiology · 2020
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Immunogenic Domains and Secondary Structure ofFrontiers in immunology · 2017
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Patricia B LodatoCenter for Vaccine Development and Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St, Baltimore, MD 21201, USA.
James B Kaper
University of Maryland, Baltimore · US

Funding

Molecular Genetics of Enteropathogenic E. Coli AdhesionR37AI021657 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 2004 to 2013
$4.8M
NOVEL E. COLI 0157:H7 INTESTINAL COLONIZATION FACTORSR01DK058957 · NIDDK · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 2000 to 2009
$3.1M
MOLECULAR GENETICS OF ENTEROPATHOGENIC E COLI ADHESIONR01AI021657 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 1989 to 2003
$1.4M
MOLECULAR GENETICS OF ENTEROPATHOGENIC E. COLI ADHESIONR22AI021657 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 1986 to 1991
–
NIAID NIH HHS AI21657NIAID NIH HHS R01 AI021657NIAID NIH HHS R37 AI021657NIDDK NIH HHS DK58957NIDDK NIH HHS R01 DK058957
6 · The paper itself

Abstract

Enterohaemorrhagic Escherichia coli (EHEC) employs a type III secretion system (T3SS) to export translocator and effector proteins required for mucosal colonization. The T3SS is encoded in a pathogenicity island called the locus of enterocyte effacement (LEE) that is organized in five major operons, LEE1 to LEE5. LEE4 encodes a regulator of secretion (SepL), translocators (EspA, D and B), two chaperones (CesD2 and L0017), a T3SS component (EscF) and an effector protein (EspF). It was originally proposed that the esp transcript is transcribed from a promoter located at the end of sepL but other authors suggested that this transcript is the result of a post-transcriptional processing event. In this study, we established that the espADB mRNA is generated by post-transcriptional processing at the end of the sepL coding sequence. RNase E is the endonuclease involved in the cleavage, but the interaction of this enzyme with other proteins through its C-terminal half is dispensable. A putative transcription termination event in the cesD2 coding region would generate the 3' end of the transcript. Similar to what has been described for other processed transcripts, the cleavage of LEE4 seems a mechanism to differentially regulate SepL and Esp protein production.

Indexed as

OperonRNA Processing, Post-TranscriptionalAmino Acid SequenceEndoribonucleasesEnterohemorrhagic Escherichia coliGene Expression Regulation, BacterialGenomic IslandsMolecular Sequence DataRNA, BacterialRNA, MessengerTranscription, GeneticEndoribonucleasesribonuclease ERNA, BacterialRNA, Messenger

Identifiers

PMID19019141
PMCPMC2782684
OpenAlexW1971860589

What OpenQuestion holds

Textmetadata
LicenceTDM
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.