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

Maged M. Saad, Christian Staehelin, William J. Broughton, William J. Deakin

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)750-754
Number of pages5
JournalJournal of Bacteriology
Issue number2
StatePublished - Jan 2008

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology

Cite this