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Descriptor in English: Flagella
Descriptor in Spanish: Flagelos
Descriptor in Portuguese: Flagelos
Descriptor in French: Flagelles
Entry term(s): Flagellum
Tree number(s): A11.284.180.290
Scope note: A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)
Allowable Qualifiers: CH chemistry
CL classification
DE drug effects
EN enzymology
GE genetics
IM immunology
ME metabolism
MI microbiology
PA pathology
PH physiology
PS parasitology
RE radiation effects
TR transplantation
UL ultrastructure
VI virology
History Note: 65(64)
DeCS UI: 5543
Descriptor UI: D005407
Date Established: 1965/01/01
Date of Entry: 1999/01/01
Revision Date: 2009/07/06
Flagella - Preferred
Concept UI M0008532
Scope note A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)
Preferred term Flagella
Entry term(s) Flagellum



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