Protein-protein interactions within type III secretion system-dependent pili of Rhizobium sp. strain NGR234

J Bacteriol. 2008 Jan;190(2):750-4. doi: 10.1128/JB.01116-07. Epub 2007 Nov 2.

Abstract

Pili synthesized by the type III secretion system of Rhizobium species strain NGR234 are essential for protein secretion and thus for efficient symbiosis with many legumes. Isolation and partial purification of these pili showed that they are composed of at least three proteins, NopA, NopB, and NopX. Using biochemical assays, we show here that these proteins interact directly with one another.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromatography, Gel
  • Fimbriae Proteins / chemistry
  • Fimbriae Proteins / genetics
  • Fimbriae Proteins / isolation & purification
  • Fimbriae Proteins / metabolism*
  • Fimbriae, Bacterial / chemistry*
  • Models, Biological
  • Molecular Weight
  • Protein Binding
  • Rhizobium / chemistry*
  • Rhizobium / metabolism*

Substances

  • Fimbriae Proteins