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A motor complex composed of an extracellular helical protein filament coupled to a rotary motor embedded in the cell envelope. One of the rings of the flagellar basal body; a double-flanged ring that anchors the basal body to the cytoplasmic membrane. Examples of this component are found in bacteria. Any constituent part of a flagellum, a long whiplike or feathery structure borne either singly or in groups by the motile cells of many bacteria and unicellular eukaryotes and by the motile male gametes of many eukaryotic organisms, which propel the cell through a liquid medium. Cytoplasmic ring located at the base of the flagellar basal body; acts as a rotor; includes three switch proteins, which generate torque and can change their conformational state in a bimodal fashion, so that the motor direction can switch between clockwise and counterclockwise. Examples of this component are found in bacteria. Any constituent part of flagellum, a 20 nm diameter filament composed of subunits of flagellin driven passively at its base by a motor powered by the transmembrane proton potential. Examples of this component are found in bacterial species. One of the three major substructures of the flagellin-based flagellum; a structure consisting of a rod, a series of rings, the Mot proteins, the switch complex and the flagellum-specific export apparatus. The rings anchor the flagellum to the cytoplasmic membrane (MS ring), the peptidoglycan (P ring) and the outer membrane (L ring). Examples of this component are found in bacteria. The central portion of the flagellar basal body, which spans the periplasm and threads through the rings. Examples of this component are found in Bacterial species.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: bacterial-type flagellum basal body
Acc: GO:0009425
Aspect: Cellular Component
Desc: One of the three major substructures of the flagellin-based flagellum; a structure consisting of a rod, a series of rings, the Mot proteins, the switch complex and the flagellum-specific export apparatus. The rings anchor the flagellum to the cytoplasmic membrane (MS ring), the peptidoglycan (P ring) and the outer membrane (L ring). Examples of this component are found in bacteria.
Synonyms:
  • flagellar basal body
  • flagellin-based flagellum basal body
Proteins in PDR annotated with:
   This term: 38 [Search]
   Term or descendants: 75 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0009425 - bacterial-type flagellum basal body (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle