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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 6p9o | ||||||
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タイトル | Poliovirus 135S-like expanded particle in complex with a monoclonal antibody directed against the N-terminal extension of capsid protein VP1 | ||||||
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![]() | VIRUS / Virus-antibody complex / poliovirus / cell-entry intermediate / expanded virus | ||||||
機能・相同性 | ![]() symbiont-mediated suppression of host translation initiation / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / ribonucleoside triphosphate phosphatase activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid ...symbiont-mediated suppression of host translation initiation / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / ribonucleoside triphosphate phosphatase activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / nucleoside-triphosphate phosphatase / channel activity / monoatomic ion transmembrane transport / RNA helicase activity / endocytosis involved in viral entry into host cell / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / virion attachment to host cell / host cell nucleus / structural molecule activity / proteolysis / RNA binding / zinc ion binding / ATP binding / 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: 2.9 Å | ||||||
![]() | Hogle, J.M. / Filman, D.J. / Shah, P.N.M. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structures reveal two distinct conformational states in a picornavirus cell entry intermediate. 著者: Pranav N M Shah / David J Filman / Krishanthi S Karunatilaka / Emma L Hesketh / Elisabetta Groppelli / Mike Strauss / James M Hogle / ![]() ![]() ![]() 要旨: The virions of enteroviruses such as poliovirus undergo a global conformational change after binding to the cellular receptor, characterized by a 4% expansion, and by the opening of holes at the two ...The virions of enteroviruses such as poliovirus undergo a global conformational change after binding to the cellular receptor, characterized by a 4% expansion, and by the opening of holes at the two and quasi-three-fold symmetry axes of the capsid. The resultant particle is called a 135S particle or A-particle and is thought to be on the pathway to a productive infection. Previously published studies have concluded that the membrane-interactive peptides, namely VP4 and the N-terminus of VP1, are irreversibly externalized in the 135S particle. However, using established protocols to produce the 135S particle, and single particle cryo-electron microscopy methods, we have identified at least two unique states that we call the early and late 135S particle. Surprisingly, only in the "late" 135S particles have detectable levels of the VP1 N-terminus been trapped outside the capsid. Moreover, we observe a distinct density inside the capsid that can be accounted for by VP4 that remains associated with the genome. Taken together our results conclusively demonstrate that the 135S particle is not a unique conformation, but rather a family of conformations that could exist simultaneously. | ||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 229 KB | 表示 | ![]() |
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PDB形式 | ![]() | 184.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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対称性 | 点対称性: (シェーンフリース記号: I (正20面体型対称)) |
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要素
#1: タンパク質 | 分子量: 33488.613 Da / 分子数: 1 / 断片: UNP residues 580-881 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: Mahoney / 参照: UniProt: P03300 |
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#2: タンパク質 | 分子量: 30075.783 Da / 分子数: 1 / 断片: UNP residues 70-341 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: Mahoney / 参照: UniProt: P03300 |
#3: タンパク質 | 分子量: 26547.482 Da / 分子数: 1 / 断片: UNP residues 342-579 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: Mahoney / 参照: UniProt: Q8QYM4, UniProt: P03300*PLUS |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Human poliovirus 1 Mahoney / タイプ: VIRUS / Entity ID: all / 由来: NATURAL |
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分子量 | 値: 10.0 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
ウイルスについての詳細 | 中空か: NO / エンベロープを持つか: NO / 単離: STRAIN / タイプ: VIRION |
天然宿主 | 生物種: Homo sapiens |
ウイルス殻 | 名称: Capsid / 直径: 300 nm / 三角数 (T数): 1 |
緩衝液 | pH: 7.5 / 詳細: phosphate-buffered saline |
試料 | 濃度: 0.4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse. |
試料支持 | 詳細: unspecified / グリッドの材料: COPPER / グリッドのサイズ: 400 divisions/in. |
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / アライメント法: BASIC |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 2.17 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 撮影したグリッド数: 2 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: I (正20面体型対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 20062 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL |