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基本情報
登録情報 | データベース: PDB / ID: 9g8s | ||||||
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タイトル | C3 reconstruction of extended phiCD508 needle | ||||||
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![]() | VIRUS / Bacteriophage / needle / baseplate | ||||||
機能・相同性 | ![]() virus tail, sheath / symbiont genome ejection through host cell envelope, contractile tail mechanism / viral tail assembly / membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.96 Å | ||||||
![]() | Wilson, J.S. / Fagan, R.P. / Bullough, P.A. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular mechanism of bacteriophage contraction structure of an S-layer-penetrating bacteriophage. 著者: Jason S Wilson / Louis-Charles Fortier / Robert P Fagan / Per A Bullough / ![]() ![]() 要旨: The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S- ...The molecular details of phage tail contraction and bacterial cell envelope penetration remain poorly understood and are completely unknown for phages infecting bacteria enveloped by proteinaceous S-layers. Here, we reveal the extended and contracted atomic structures of an intact contractile-tailed phage (φCD508) that binds to and penetrates the protective S-layer of the Gram-positive human pathogen The tail is unusually long (225 nm), and it is also notable that the tail contracts less than those studied in related contractile injection systems such as the model phage T4 (∼20% compared with ∼50%). Surprisingly, we find no evidence of auxiliary enzymatic domains that other phages exploit in cell wall penetration, suggesting that sufficient energy is released upon tail contraction to penetrate the S-layer and the thick cell wall without enzymatic activity. Instead, the unusually long tail length, which becomes more flexible upon contraction, likely contributes toward the required free energy release for envelope penetration. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 4.7 MB | 表示 | ![]() |
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-関連構造データ
関連構造データ | ![]() 51138MC ![]() 9gayC ![]() 9gazC ![]() 9gb0C ![]() 9gb1C ![]() 9gb2C ![]() 9gb3C ![]() 9gb4C ![]() 9gb5C ![]() 9gb6C ![]() 9gb7C ![]() 9gb8C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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非結晶学的対称性 (NCS) | NCSドメイン:
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