Oligopeptide permease in Borrelia burgdorferi: Putative peptide-binding components encoded by both chromosomal and plasmid loci

James L. Bono, Kit Tilly, Brian Stevenson, Dan Hogan, Patricia Rosa

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

To elucidate the importance of oligopeptide permease for Borrelia burgdorferi, the agent of Lyme disease, a chromosomal locus in B. burgdorferi that encodes homologues of all five subunits of oligopeptide permease has been identified and characterized. B. burgdorferi has multiple copies of the gene encoding the peptide-binding component, OppA; three reside at the chromosomal locus and two are on plasmids. Northern analyses indicate that each oppA gene is independently transcribed, although the three chromosomal oppA genes are also expressed as bi- and tri-cistronic messages. Induction of one of the plasmid-encoded oppA genes was observed following an increase in temperature, which appears to be an important cue for adaptive responses in vivo. The deduced amino acid sequences suggest that all five borrelial OppA homologues are lipoproteins, but the protease-resistance of at least one of them in intact bacteria is inconsistent with outer-surface localization. Insertional inactivation of a plasmid-encoded oppA gene demonstrates that it is not essential for growth in culture.

Original languageEnglish
Pages (from-to)1033-1044
Number of pages12
JournalMicrobiology
Volume144
Issue number4
DOIs
StatePublished - Apr 1998

Keywords

  • Lyme disease
  • Oligopeptide permease
  • Plasmids
  • Spirochaetes
  • oppA

ASJC Scopus subject areas

  • Microbiology

Fingerprint

Dive into the research topics of 'Oligopeptide permease in Borrelia burgdorferi: Putative peptide-binding components encoded by both chromosomal and plasmid loci'. Together they form a unique fingerprint.

Cite this