ArticlePloS one2012
Integrase-mediated recombination of the veb1 gene cassette encoding an extended-spectrum β-lactamase.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
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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.
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Who cites it
8 citing papers in PubMed, 14 citations in OpenAlex.
- Characterization of GUA-1, a chromosomally encoded ESBL fromAntimicrobial agents and chemotherapy · 2026Article
- Article
- Activation of class 1 integron integrase is promoted in the intestinal environment.PLoS genetics · 2022Article
- Article
- A genome-wide association analysis reveals a potential role for recombination in the evolution of antimicrobial resistance in Burkholderia multivorans.PLoS pathogens · 2018Article
- Integrase-Mediated Recombination of theAntimicrobial agents and chemotherapy · 2018Article
- Diversity of Class 1 Integron Gene Cassette Rearrangements Selected under Antibiotic Pressure.Journal of bacteriology · 2015Article
- Integron-borne transmission of VEB-1 extended-spectrum β-lactamase in Pseudomonas aeruginosa in a tertiary care hospital in India.Antimicrobial agents and chemotherapy · 2014Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The veb1 gene cassette encodes the extended spectrum β-lactamase, VEB-1 that is increasingly isolated from worldwide Gram-negative rods. Veb1 is commonly inserted into the variable region of different class 1 integrons in which it is always associated with a downstream-located aadB gene cassette encoding an aminoglycoside adenylyltransferase. In Pseudomonas aeruginosa, the majority of veb1-containing integrons also carry an insertion sequence, IS1999 that is inserted upstream of the veb1 gene cassette and disrupts the integron specific recombination site, attI1. Investigation of the recombination properties of the sites surrounding veb1 revealed that insertion of IS1999 reduces significantly the recombination frequency of attI1 and that veb1 attC is not efficient for recombination in contrast to aadB attC. Subsequent sequence optimisation of veb1 attC by mutagenesis, into a more consensual attC site resembling aadB attC, successfully improved recombination efficiency. Overall, this work gives some insights into the organisation of veb1-containing integrons. We propose that IS1999 and the nature of veb1 attC stabilize the veb1 gene cassette environment likely by impairing recombination events upstream or downstream of veb1, respectively.
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Registered trials
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.