Salceda SR, Albert GJS

Idioma: Español
Referencias bibliográficas: 85
Paginas: 102-114
Archivo PDF: 545.34 Kb.

RESUMEN

Los componentes del citoplasma de las células eucariontes están en constante movimiento gracias a la presencia del citoesqueleto, intrincada y ramificada red de proteínas que le permiten a la célula adoptar diferentes formas, organizar los distintos componentes, mantener el volumen y llevar a cabo el desplazamiento celular. Adicionalmente a los microtúbulos, microfilamentos y filamentos intermedios, se demostró la existencia de un cuarto componente del citoesqueleto formado por las proteínas septinas, las que pueden adoptar distintas arreglos estructurales. Una variedad de estudios indican en procariontes la existencia de proteínas que forman estructuras filamentosas equivalentes al citoesqueleto de los eucariontes; los mecanismos que regulan su ensamble y desensamble aún se desconocen. Esta revisión presenta las generalidades de esta estructura con énfasis en la información reciente de esta dinámica estructura.

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