…Some spirochetes contain antigenic proteins similar to tubulin, which are the constituent proteins of the fibrous structures that penetrate the cytoplasm, and are cited as evidence supporting this hypothesis. (2) Microfilament A thin fibrous structure with a diameter of about 50 nm, whose constituent protein is F-actin. In muscle cells, the thin fibers of myofibrils are formed by the polymerization of α-actin, and the interaction between these and the thick myosin filaments running parallel to them generates force, resulting in muscle contraction. … *Some of the terminology that mentions "microfilament" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ある種のスピロヘータには,チューブリンと同種の抗原タンパク質が含まれ,細胞質を貫く繊維構造はこれが構成タンパク質になっているので,このような仮説を支持する証拠にあげられている。(2)マイクロフィラメントmicrofilament 直径50nmほどの細い繊維構造で,Fアクチンが構成タンパク質である。筋細胞では筋原繊維の細繊維がα‐アクチンの重合によってできており,これと平行に走る太いミオシン繊維との間の相互作用によって力を発生し,筋収縮が起こる。… ※「microfilament」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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