Evidence map›Paper›PMID 8550463›Full record

ArticleJournal of bacteriology1996

Conserved cis-acting promoter elements are required for density-dependent transcription of Agrobacterium tumefaciens conjugal transfer genes.

C Fuqua, S C Winans

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

102 citing papers in PubMed, 271 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Identification of Quorum-Sensing Molecules ofMolecules (Basel, Switzerland) · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Host modification of a bacterial quorum-sensing signal induces a phenotypic switch in bacterial symbionts.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  20. Article

42 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

2 authors at 1 institution in 1 country.

C FuquaDepartment of Biology, Trinity University, San Antonio, Texas 78212, USA.
S C Winans
Trinity University · US

Funding

INTERACTIONS BETWEEN AGROBACTERIUM AND HOST PLANTSR01GM042893 · NIGMS · CORNELL UNIVERSITY ITHACA · PI WINANS, STEPHEN C. · 1994 to 2010
$4.1M
INTERACTIONS BETWEEN DNA AND THE LYSR-TYPE PROTEIN OCCRF32GM015128 · NIGMS · CORNELL UNIVERSITY ITHACA · PI FUQUA, WILLIAM C · 1992 to 1994
–
INTERACTIONS BETWEEN AGROBACTERIUM AND HOST PLANTSR29GM042893 · NIGMS · CORNELL UNIVERSITY ITHACA · PI WINANS, STEPHEN C. · 1989 to 1993
–
NIGMS NIH HHS GM15128NIGMS NIH HHS GM42893
6 · The paper itself

Abstract

Ti plasmids of Agrobacterium tumefaciens, in addition to transferring oncogenic DNA to the nuclei of infected plant cells, can conjugally transfer between agrobacteria. Conjugation of wide-host-range octopine-type Ti plasmids requires a tumor-released arginine derivative called octopine. Octopine stimulates expression of the traR gene, whose product directly activates other tra genes in the presence of an acylated homoserine lactone called Agrobacterium autoinducer (AAI). We have localized the transcription starts of three tra promoters and find conserved elements (tra boxes) at virtually identical positions upstream of each promoter. Disruption of these tra boxes abolished induction of each promoter. Deletion analysis of the traI promoter indicates that tra boxes are the only upstream elements required for transcriptional activation. Since Ti plasmid donor cells both produce and respond to AAI, we tested whether expression of tra promoters was enhanced by high concentrations of bacteria. Both tra gene expression and conjugation itself were strongly stimulated either by high donor densities or by exogenous AAI.

Indexed as

Agrobacterium tumefaciensBacterial Outer Membrane ProteinsBase SequenceConjugation, GeneticDNA HelicasesEscherichia coli ProteinsFimbriae ProteinsGene Expression Regulation, BacterialGenes, BacterialMolecular Sequence DataPili, SexPlasmidsPromoter Regions, GeneticSequence DeletionTranscription, GeneticBacterial Outer Membrane ProteinsDNA HelicasesEscherichia coli ProteinsFimbriae ProteinstraC protein, Plasmid FTraI protein, E coli

Identifiers

PMID8550463
PMCPMC177675
OpenAlexW1588164239

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.