Evidence map›Paper›PMID 16952941›Full record

ArticleJournal of bacteriology2006

Functional characterization of IS1999, an IS4 family element involved in mobilization and expression of beta-lactam resistance genes.

Daniel Aubert, Thierry Naas, Claire Héritier, Laurent Poirel, Patrice Nordmann

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In one paragraph

Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

70 citing papers in PubMed, 130 citations in OpenAlex.

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  16. Emergence of TnAntimicrobial agents and chemotherapy · 2022
    Article
  17. Current Positioning against Severe Infections Due toAntibiotics (Basel, Switzerland) · 2022
    Review
  18. Review
  19. The biogenesis of β-lactamase enzymes.Microbiology (Reading, England) · 2022
    Review
  20. Review

10 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

5 authors at 2 institutions in 1 country.

Daniel AubertService de Bactériologie-Virologie, Hôpital de Bicêtre, 78 rue du Général Leclerc, 94275 Le Kremlin-Bicêtre Cedex, France. thierry.naas@bct.ap-hop-paris.fr
Thierry Naas
Claire Héritier
Laurent Poirel
Patrice Nordmann
Bicêtre Hospital · FRAssistance Publique – Hôpitaux de Paris · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

IS1999 and a point mutant derivative, IS1999.2, have been described inserted upstream of emerging antibiotic resistance genes bla(VEB-1) and bla(OXA-48). 5' Rapid amplification of cDNA ends experiments revealed that expression of these beta-lactamase genes was driven by the outward-directed promoter, P(out), located in the IS1999 elements. These findings led us to study IS1999-mediated gene mobilization. Thus, the transposition properties of IS1999 and of IS1999-based composite transposons, made of two copies of IS1999 in different orientations, were investigated. IS1999 or IS1999-based composite transposons were capable of transposing onto the conjugative plasmid pOX38-Gen. Sequence analysis of the insertion sites revealed that IS1999 inserted preferentially into DNA targets containing the consensus sequence NGCNNNGCN. Transposition was more efficient when at least one left inverted repeat end was located at an outside end of the transposon. The transposition frequency of IS1999.2 was 10-fold lower than that of IS1999, and transposition frequencies of the putative natural transposon, Tn1999, were below detection limits of our transposition assay. This reduced transposition frequency of IS1999.2-based elements may result from a lower transcription of the transposase gene, as revealed by reverse transcription-PCR analyses.

Indexed as

Gene Expression Regulation, BacterialAmino Acid SequenceBase Sequencebeta-Lactam ResistanceDNA, BacterialDNA Transposable ElementsEnterobacteriaceaeMolecular Sequence DataPlasmidsPoint MutationPromoter Regions, GeneticPseudomonas aeruginosaReverse Transcriptase Polymerase Chain ReactionRNA, BacterialRNA, MessengerSequence Analysis, DNADNA, BacterialDNA Transposable ElementsRNA, BacterialRNA, MessengerTransposases

Identifiers

PMID16952941
PMCPMC1595497
OpenAlexW2145215496

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.