Integron Identification in Bacterial Genomes and Cassette Recombination Assays

  • Claire Vit
  • Céline Loot
  • José Antonio Escudero
  • Aleksandra Nivina
  • Didier MazelEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2075)


Integrons are genetic elements involved in bacterial adaptation to the environment. Sedentary chromosomal integrons (SCIs) can stockpile and rearrange a myriad of different functions encoded in gene cassettes. Through their association with transposable elements and conjugative plasmids, some SCIs have acquired mobility and are now termed Mobile Integrons (MIs). MIs have reached the hospitals and are involved in the rise and spread of antibiotic resistance genes through horizontal gene transfer among numerous bacterial species. Here we aimed at describing methods for the detection of integrons in sequenced bacterial genomes as well as for the experimental characterization of the activity of their different components: the integrase and the recombination sites.

Key words

Integron Site-specific recombination Cassette excision and insertion Integrase attC and attI sites Replication 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Claire Vit
    • 1
    • 2
    • 3
  • Céline Loot
    • 1
    • 2
  • José Antonio Escudero
    • 1
    • 2
  • Aleksandra Nivina
    • 1
    • 2
    • 4
  • Didier Mazel
    • 1
    • 2
    Email author
  1. 1.Unité Plasticité du Génome Bactérien, Département Génomes et GénétiqueInstitut PasteurParisFrance
  2. 2.CNRS, UMR3525ParisFrance
  3. 3.Sorbonne Université, Collège doctoralParisFrance
  4. 4.Paris Descartes, Sorbonne Paris CitéParisFrance

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