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Related Experiment Videos

Updated sequence information for TEM beta-lactamase genes

S Goussard1, P Courvalin

  • 1Unité des Agents Antibactériens, Institut Pasteur, Paris, France. sgouss@pasteur.fr

Antimicrobial Agents and Chemotherapy
|January 30, 1999
PubMed
Summary
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Sequencing of TEM-type beta-lactamase genes reveals new insights into penicillinase, extended-spectrum, and inhibitor-resistant variants. An updated nomenclature for the blaTEM gene is proposed based on these findings.

Area of Science:

  • Microbiology
  • Genetics
  • Molecular Biology

Background:

  • Beta-lactamase enzymes, particularly TEM-type, are a significant cause of antibiotic resistance.
  • Understanding the genetic basis of these enzymes is crucial for combating antimicrobial resistance.

Purpose of the Study:

  • To determine the DNA sequences of promoter regions and structural genes for various TEM-type beta-lactamases.
  • To propose an updated nomenclature for the blaTEM gene based on sequence data.

Main Methods:

  • DNA sequencing of promoter regions.
  • DNA sequencing of structural genes for TEM-type beta-lactamases.
  • Bioinformatic analysis of sequence data.

Main Results:

Related Experiment Videos

  • Complete sequences for 13 distinct TEM-type beta-lactamase genes and their promoter regions were elucidated.
  • Sequence data provided a basis for re-evaluating and updating the existing blaTEM gene nomenclature.

    • Conclusions:

    • The determined sequences offer a comprehensive resource for understanding TEM-type beta-lactamase evolution and function.
    • The proposed updated nomenclature facilitates clearer communication and classification of blaTEM genes.