Fibronectin-binding proteins of a human oral spirochete Treponema denticola

Microbiol Immunol. 1993;37(1):75-8. doi: 10.1111/j.1348-0421.1993.tb03182.x.

Abstract

Major polypeptides from a human oral spirochete Treponema denticola ATCC 33520 were examined to demonstrate their ability to bind to human plasma fibronectin by immunoblot analysis. Of three main polypeptides separated on sodium dodecyl sulfate polyacrylamide gels 53,000-daltons (53-kDa) and 72-kDa surface antigenic proteins and a 38-kDa axial flagellar protein showed the ability to bind to fibronectin, suggesting that fibronectin on host cells can mediate cytoadherence of T. denticola by its binding to the surface proteins or the exposed 38-kDa axial flagellar protein.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesins, Bacterial*
  • Amino Acid Sequence
  • Antigens, Bacterial / chemistry
  • Antigens, Bacterial / metabolism
  • Bacterial Adhesion / physiology
  • Bacterial Outer Membrane Proteins / chemistry
  • Bacterial Outer Membrane Proteins / immunology
  • Bacterial Outer Membrane Proteins / metabolism*
  • Bacterial Proteins*
  • Binding Sites
  • Carrier Proteins*
  • Fibronectins / chemistry
  • Fibronectins / metabolism
  • Humans
  • Immunoblotting
  • In Vitro Techniques
  • Molecular Sequence Data
  • Molecular Weight
  • Mouth / microbiology
  • Oligopeptides / chemistry
  • Oligopeptides / metabolism
  • Oligopeptides / pharmacology
  • Treponema / immunology
  • Treponema / isolation & purification
  • Treponema / metabolism*

Substances

  • Adhesins, Bacterial
  • Antigens, Bacterial
  • Bacterial Outer Membrane Proteins
  • Bacterial Proteins
  • Carrier Proteins
  • Fibronectins
  • Oligopeptides
  • fibronectin-binding proteins, bacterial
  • arginyl-glycyl-aspartic acid