Microfilament
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Details
Microfilaments (or actin filaments) are the thinnest filaments of the cytoskeleton found in the cytoplasm of all eukaryotic cells. These linear polymers of actin subunits are flexible and relatively strong, resisting buckling by multi-piconewton compressive forces and filament fracture by nanonewton tensile forces. Microfilaments are highly versatile, functioning in (a) cell crawling, amoeboid movement, and changes in cell shape, where one end of the actin filament elongates while the other end contractile, presumably by myosin II molecular motors (though an alternative "actoclampin"-driven expansile molecular motors exists), and (b) actomyosin-driven contractile molecular motors, where the thin filaments serve as tensile platforms for myosin's ATP hydrolysis-dependent pulling action in muscle contraction and uropod advancement.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130669010
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- EAN 9786130669010
- Format Fachbuch
- Titel Microfilament
- Herausgeber Alphascript Publishing
- Anzahl Seiten 72
- Genre Biologie
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