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CITOESQUELETO [1 record]

Record 1 2011-11-24

English

Subject field(s)
  • Cytology
  • Molecular Biology
  • Nervous System
DEF

[A set of] various types of long cylindrical filaments of about 25 nm [nanometers] in diameter within cells built by polymerization of alpha- and beta-tubulin proteins.

CONT

Microtubules are hollow tubulin filaments of the spindle apparatus of the dividing nuclei, elements of the cytoskeleton, cilia, flagella, etc.

French

Domaine(s)
  • Cytologie
  • Biologie moléculaire
  • Système nerveux
DEF

Élément structurel, en forme de tube creux, d'un diamètre de 25 nm [nanomètres] supérieur à celui des microfilaments avec lesquels il constitue, en compagnie des filaments intermédiaires, le cytosquelette ou système des protéines fibreuses.

Spanish

Campo(s) temático(s)
  • Citología
  • Biología molecular
  • Sistema nervioso
CONT

Microtúbulos. Son un componente del citoesqueleto que tiene un papel organizador interno crucial en todas las células eucariotas, y a algunas también les permiten moverse. Los microtúbulos tienen numerosas funciones, como establecer la disposición espacial de determinados orgánulos, formar un sistema de raíles mediante el cual se pueden transportar vesículas o macromoléculas entre compartimentos celulares, son imprescindibles para la división celular puesto que forman el huso mitótico y son esenciales para la estructura y función de los cilios y de los flagelos.

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