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Chapter 25

The Cytoskeleton I: Actin and Microfilaments

Введение в цитоскелет
Введение в цитоскелет
Overview of the Cytoskeleton The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ...
Адаптивность цитоскелетных филаментов
Адаптивность цитоскелетных филаментов
The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments ...
Полярность цитоскелета
Полярность цитоскелета
The intrinsic polarity of cells can be primarily attributed to two factors- i) the asymmetric accumulation of mobile components such are regulatory ...
Сборка цитоскелетных филаментов
Сборка цитоскелетных филаментов
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate ...
Белки цитоскелетного линкера - Plakins
Белки цитоскелетного линкера - Plakins
Plakins are large proteins with binding domains for microtubules, microfilaments, intermediate filaments, and membrane-associated protein complexes at ...
Вспомогательные белки цитоскелета
Вспомогательные белки цитоскелета
The cytoskeleton is an essential cell component that plays several structural and functional roles. However, the filaments that make up the cytoskeleton ...
Белки цитоскелета у бактерий
Белки цитоскелета у бактерий
Bacterial cells were initially considered simple, randomly organized structures lacking a cytoskeleton. However, the discovery of cytoskeleton homologs in ...
Внутриклеточное перемещение вирусов и бактерий
Внутриклеточное перемещение вирусов и бактерий
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include ...
Изучение цитоскелета
Изучение цитоскелета
The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering ...
Введение в Actin
Введение в Actin
Actin is a highly conserved cytoskeletal protein found abundantly in eukaryotic cells. It constitutes 10% weight of the total cellular protein in muscle ...
Полимеризация актина
Полимеризация актина
Actin polymerization occurs through the head-to-tail association of binding sites on monomeric actin or G-actin to form filamentous or F-actin. The ...
Беговая дорожка Actin
Беговая дорожка Actin
Actin filaments undergo polymerization and depolymerization from either end. The polymerization and depolymerization rates depend on the cytosolic ...
Образование прямых или разветвленных актиновых филаментов
Образование прямых или разветвленных актиновых филаментов
The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. ...
Деполимеризация актиновых филаментов
Деполимеризация актиновых филаментов
Actin filaments (F-actin) are composed of actin subunits. The dissociation of actin monomers can occur from either end of F-actin. The rate of ...
Образование актиновых филаментов высшего порядка
Образование актиновых филаментов высшего порядка
The polymerization of G-actin monomers into filamentous F-actin is a multi-step process. Once the F-actins are formed, they can bundle together in ...
Обзор структуры и функции миозина
Обзор структуры и функции миозина
Myosins are a family of molecular motor proteins, first identified in the skeletal muscles, where they are responsible for muscle contraction. Along with ...
Актин и миозин в мышечном сокращении
Актин и миозин в мышечном сокращении
Actin and myosin are contractile proteins that form the sarcomere found in skeletal muscle tissues for regulating muscle contraction. Actin, a globular ...
Роль актина и миозина в немышечных клетках
Роль актина и миозина в немышечных клетках
Actin and myosin or actomyosin filaments also play a significant role in cells other than those involved in muscle contraction (which occurs within the ...
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