Growth mechanism of the bacterial flagellar filament

Koji Yonekura, Saori Maki-Yonekura, Keiichi Namba

Research output: Contribution to journalReview articlepeer-review

51 Citations (Scopus)


The growth of the bacterial flagellar filament occurs at its distal end by self-assembly of flagellin transported from the cytoplasm through the narrow central channel of the flagellum. The cap at the growing end is essential for its growth, remaining stably attached while permitting the flagellin insertion. The structure of the cap-filament analyzed by electron cryomicroscopy suggested a cap rotation mechanism to promote the flagellin self-assembly.

Original languageEnglish
Pages (from-to)191-197
Number of pages7
JournalResearch in Microbiology
Issue number4
Publication statusPublished - 2002


  • Bacterial flagellum
  • Electron cryomicroscopy
  • Flagellar cap
  • Flagellin
  • FliD
  • HAP2
  • Salmonella
  • Self-assembly


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