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The p40* adhesin pseudogene of Mycoplasma bovis

Anne Thomas1, Annick Linden, Jacques Mainil

  • 1Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, B43A, Sart Tilman, 4000 Liège, Belgium.

Veterinary Microbiology
|November 27, 2004
PubMed

Insights

A Mycoplasma bovis gene, analogous to Mycoplasma agalactiae's adhesin p40, was identified. Sequence analysis revealed a deletion, causing premature protein truncation and indicating the gene functions as a pseudogene in M. bovis.

Area of Science:

  • Microbiology
  • Molecular Biology
  • Genomics

Background:

  • Mycoplasma species are significant veterinary pathogens.
  • The adhesin gene p40 is crucial for Mycoplasma agalactiae virulence.
  • Understanding adhesin gene analogues in other Mycoplasma species is important for pathogen research.

Purpose of the Study:

  • To identify and characterize the p40 adhesin gene analogue in Mycoplasma bovis.
  • To determine the functional status of the p40 analogue in M. bovis.

Main Methods:

  • Nucleotide sequence analysis of the putative p40 analogue gene in Mycoplasma bovis.
  • Comparison of the M. bovis sequence with the Mycoplasma agalactiae p40 gene.

Main Results:

  • An analogue of the Mycoplasma agalactiae p40 adhesin gene was identified in Mycoplasma bovis.
  • Sequence analysis revealed a large deletion within the M. bovis p40* gene.
  • The deletion resulted in a frameshift and premature truncation of the translated protein.

Conclusions:

  • The p40 adhesin gene analogue in Mycoplasma bovis is non-functional due to a large deletion.
  • The p40* gene in Mycoplasma bovis exists as a pseudogene.
  • This finding contributes to understanding genetic variations and potential virulence factors in Mycoplasma bovis.

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