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Keyword - Fimbrium (KW-0281)


Protein found in a fimbrium or pilus. A fimbrium or pilus is a hair-like, non-flagellar, polymeric filamentous appendage that extend from the bacterial or archaeal cell surface, such as type 1 pili, P-pili, type IV pili or curli. Pili perform a variety of functions, including surface adhesion, motility, cell-cell interactions, biofilm formation, conjugation, DNA uptake, and twitching motility.


  • Fimbria
  • Pili
  • Pilus


Cellular component

Gene Ontology


pilus [ GO:0009289 ]


FimbriumCellular component
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