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第 25 章

細胞骨格 I: アクチンとマイクロフィラメント

サイトスケルトンの紹介
サイトスケルトンの紹介
Overview of the Cytoskeleton The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ...
細胞骨格フィラメントの適応性
細胞骨格フィラメントの適応性
The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments ...
細胞骨格の極性
細胞骨格の極性
The intrinsic polarity of cells can be primarily attributed to two factors- i) the asymmetric accumulation of mobile components such are regulatory ...
細胞骨格フィラメントの組み立て
細胞骨格フィラメントの組み立て
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate ...
細胞骨格リンカータンパク質 - Plakins
細胞骨格リンカータンパク質 - Plakins
Plakins are large proteins with binding domains for microtubules, microfilaments, intermediate filaments, and membrane-associated protein complexes at ...
細胞骨格アクセサリータンパク質
細胞骨格アクセサリータンパク質
The cytoskeleton is an essential cell component that plays several structural and functional roles. However, the filaments that make up the cytoskeleton ...
細菌の細胞骨格タンパク質
細菌の細胞骨格タンパク質
Bacterial cells were initially considered simple, randomly organized structures lacking a cytoskeleton. However, the discovery of cytoskeleton homologs in ...
ウイルスや細菌の細胞内移動
ウイルスや細菌の細胞内移動
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include ...
細胞骨格の研究
細胞骨格の研究
The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering ...
Actinの紹介
Actinの紹介
Actin is a highly conserved cytoskeletal protein found abundantly in eukaryotic cells. It constitutes 10% weight of the total cellular protein in muscle ...
アクチン重合
アクチン重合
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 ...
Actinトレッドミル
Actinトレッドミル
Actin filaments undergo polymerization and depolymerization from either end. The polymerization and depolymerization rates depend on the cytosolic ...
直進型または分岐型アクチンフィラメントの生成
直進型または分岐型アクチンフィラメントの生成
The straight or branched structure formation of actin filaments is controlled by nucleating proteins such as the formins and Arp2/3 complex. ...
アクチンフィラメント解重合
アクチンフィラメント解重合
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 ...
高次アクチンフィラメントの形成
高次アクチンフィラメントの形成
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 ...
ミオシンの構造と機能の概要
ミオシンの構造と機能の概要
Myosins are a family of molecular motor proteins, first identified in the skeletal muscles, where they are responsible for muscle contraction. Along with ...
筋肉収縮におけるアクチンとミオシン
筋肉収縮におけるアクチンとミオシン
Actin and myosin are contractile proteins that form the sarcomere found in skeletal muscle tissues for regulating muscle contraction. Actin, a globular ...
非筋肉細胞におけるアクチンとミオシンの役割
非筋肉細胞におけるアクチンとミオシンの役割
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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