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Related Experiment Videos

Bacterial virulence: can we draw the line?

T M Wassenaar1, W Gaastra

  • 1Division of Bacteriology, Department of Infectious Diseases and Immunology, School of Veterinary Medicine, University of Utrecht, P.O. Box 80.165, 3508 TD, Utrecht, The Netherlands. wassenaar_t@yahoo.co.uk

FEMS Microbiology Letters
|July 11, 2001
PubMed
Summary
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This review proposes a refined definition for bacterial virulence genes, emphasizing their specific function in pathogenicity. Incorporating bacterial lifestyle and a universal nomenclature will improve database annotation and understanding of microbial virulence.

Area of Science:

  • Microbiology
  • Genomics
  • Molecular Biology

Background:

  • The molecular study of microbial pathogenesis has generated vast data on bacterial virulence genes.
  • Rapid bacterial genome sequencing continuously adds candidate virulence genes to electronic databases.
  • Current interpretation is hindered by the indiscriminate labeling of all pathogenicity-related genes as 'virulence genes'.

Purpose of the Study:

  • To review the evolving concept of bacterial virulence and strategies for identifying virulence genes.
  • To propose a refined definition of virulence genes that incorporates their specific function.
  • To suggest improvements for assessing and annotating putative virulence genes in databases.

Main Methods:

  • Literature review of bacterial virulence and gene identification strategies.

Related Experiment Videos

  • Analysis of current practices in virulence gene annotation.
  • Proposal of a functional definition and a universal nomenclature system.

    • Main Results:

    • Identified ambiguity in the current definition and annotation of virulence genes.
    • Proposed a refined definition of virulence genes based on functional roles in pathogenicity.
    • Suggested incorporating bacterial lifestyle and a universal nomenclature for improved clarity.

    Conclusions:

    • A functional definition and standardized nomenclature are crucial for understanding bacterial virulence.
    • These improvements will enhance the precision of (putative) virulence gene annotation.
    • More efficient utilization of electronic databases for microbial pathogenesis research is anticipated.