+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-1562 | |||||||||
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タイトル | CryoEM reconstructions of PV3 complexed with deglycosylated CD155 | |||||||||
マップデータ | CryoEM reconstructions of PV3 complexed with deglycosylated CD155 | |||||||||
試料 |
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キーワード | Poliovirus type3 / poliovirus receptor | |||||||||
機能・相同性 | 機能・相同性情報 susceptibility to T cell mediated cytotoxicity / susceptibility to natural killer cell mediated cytotoxicity / Nectin/Necl trans heterodimerization / positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target / caveolin-mediated endocytosis of virus by host cell / positive regulation of natural killer cell mediated cytotoxicity / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / homophilic cell adhesion via plasma membrane adhesion molecules / protein complex oligomerization / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity ...susceptibility to T cell mediated cytotoxicity / susceptibility to natural killer cell mediated cytotoxicity / Nectin/Necl trans heterodimerization / positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target / caveolin-mediated endocytosis of virus by host cell / positive regulation of natural killer cell mediated cytotoxicity / heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules / homophilic cell adhesion via plasma membrane adhesion molecules / protein complex oligomerization / 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 / monoatomic ion channel activity / cell adhesion molecule binding / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS 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 / ribonucleoside triphosphate phosphatase activity / T=pseudo3 icosahedral viral capsid / adherens junction / host cell cytoplasmic vesicle membrane / cytoplasmic vesicle membrane / endocytosis involved in viral entry into host cell / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / nucleoside-triphosphate phosphatase / channel activity / peptidase activity / signaling receptor activity / virus receptor activity / monoatomic ion transmembrane transport / host cell cytoplasm / DNA replication / RNA helicase activity / symbiont-mediated suppression of host innate immune response / induction by virus of host autophagy / symbiont entry into host cell / RNA-directed RNA polymerase / viral RNA genome replication / cysteine-type endopeptidase activity / RNA-dependent RNA polymerase activity / focal adhesion / virus-mediated perturbation of host defense response / DNA-templated transcription / host cell nucleus / virion attachment to host cell / structural molecule activity / cell surface / ATP hydrolysis activity / proteolysis / RNA binding / extracellular space / ATP binding / membrane / metal ion binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Human poliovirus 3 (ポリオウイルス) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / ネガティブ染色法 / 解像度: 9.0 Å | |||||||||
データ登録者 | Zhang P / Mueller S / Morais MC / Bator-Kelly CM / Bowman VD / Hafenstein S / Wimmer E / Rossmann MG | |||||||||
引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2008 タイトル: Crystal structure of CD155 and electron microscopic studies of its complexes with polioviruses. 著者: Ping Zhang / Steffen Mueller / Marc C Morais / Carol M Bator / Valorie D Bowman / Susan Hafenstein / Eckard Wimmer / Michael G Rossmann / 要旨: When poliovirus (PV) recognizes its receptor, CD155, the virus changes from a 160S to a 135S particle before releasing its genome into the cytoplasm. CD155 is a transmembrane protein with 3 Ig-like ...When poliovirus (PV) recognizes its receptor, CD155, the virus changes from a 160S to a 135S particle before releasing its genome into the cytoplasm. CD155 is a transmembrane protein with 3 Ig-like extracellular domains, D1-D3, where D1 is recognized by the virus. The crystal structure of D1D2 has been determined to 3.5-A resolution and fitted into approximately 8.5-A resolution cryoelectron microscopy reconstructions of the virus-receptor complexes for the 3 PV serotypes. These structures show that, compared with human rhinoviruses, the virus-receptor interactions for PVs have a greater dependence on hydrophobic interactions, as might be required for a virus that can inhabit environments of different pH. The pocket factor was shown to remain in the virus during the first recognition stage. The present structures, when combined with earlier mutational investigations, show that in the subsequent entry stage the receptor moves further into the canyon when at a physiological temperature, thereby expelling the pocket factor and separating the viral subunits to form 135S particles. These results provide a detailed analysis of how a nonenveloped virus can enter its host cell. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_1562.map.gz | 10.2 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-1562-v30.xml emd-1562.xml | 9.6 KB 9.6 KB | 表示 表示 | EMDBヘッダ |
画像 | 1562.gif | 59.2 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-1562 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-1562 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_1562_validation.pdf.gz | 346.7 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_1562_full_validation.pdf.gz | 346.2 KB | 表示 | |
XML形式データ | emd_1562_validation.xml.gz | 6.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1562 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-1562 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_1562.map.gz / 形式: CCP4 / 大きさ: 38.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | CryoEM reconstructions of PV3 complexed with deglycosylated CD155 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.64 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : CD155-PV3 complex
全体 | 名称: CD155-PV3 complex |
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要素 |
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-超分子 #1000: CD155-PV3 complex
超分子 | 名称: CD155-PV3 complex / タイプ: sample / ID: 1000 集合状態: 60 copies of CD155 bind to icosahedral protein shell of a PV3 particle Number unique components: 2 |
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分子量 | 理論値: 11.1 MDa |
-超分子 #1: Human poliovirus 3
超分子 | 名称: Human poliovirus 3 / タイプ: virus / ID: 1 / Name.synonym: poliovirus type 3 / NCBI-ID: 12086 / 生物種: Human poliovirus 3 / ウイルスタイプ: VIRION / ウイルス・単離状態: SEROTYPE / ウイルス・エンベロープ: No / ウイルス・中空状態: No / Syn species name: poliovirus type 3 |
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宿主 | 生物種: Homo sapiens (ヒト) / 別称: VERTEBRATES |
分子量 | 理論値: 8.5 MDa |
ウイルス殻 | Shell ID: 1 / 直径: 310 Å |
-実験情報
-構造解析
手法 | ネガティブ染色法, クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 2 mg/mL |
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緩衝液 | pH: 7.5 / 詳細: 10mM Tris-HCl, 20mM NaCl |
染色 | タイプ: NEGATIVE 詳細: A small vial of ethane is placed inside a larger liquid nitrogen reservoir. The grid holding a few microliters of the sample is held in place at the bottom of a plunger by the means of fine ...詳細: A small vial of ethane is placed inside a larger liquid nitrogen reservoir. The grid holding a few microliters of the sample is held in place at the bottom of a plunger by the means of fine tweezers. Once the ethane in the vial is completely frozen, it needs to be slightly melted. When the liquid ethane is ready, a piece of filter paper is then pressed against the sample to blot of excess buffer, sufficient to leave a thin layer on the grid. After a predetermined time, the filter paper is removed, and the plunger is allowed to drop into the liquid ethane. Once the grid enters the liquid ethane, the sample is rapidly frozen, and the grid is transferred under liquid nitrogen to a storage box immersed liquid nitrogen for later use in the microscope. |
凍結 | 凍結剤: ETHANE / 装置: OTHER |
-電子顕微鏡法
顕微鏡 | FEI/PHILIPS CM300FEG/T |
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温度 | 平均: 98 K |
アライメント法 | Legacy - 非点収差: live FFT at 200K |
撮影 | カテゴリ: CCD / フィルム・検出器のモデル: KODAK SO-163 FILM / 実像数: 34 / 平均電子線量: 20 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 倍率(補正後): 47190 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.749 µm / 最小 デフォーカス(公称値): 0.985 µm / 倍率(公称値): 47000 |
試料ステージ | 試料ホルダー: Eucentric / 試料ホルダーモデル: GATAN LIQUID NITROGEN |
-画像解析
最終 再構成 | 想定した対称性 - 点群: I (正20面体型対称) / 解像度のタイプ: BY AUTHOR / 解像度: 9.0 Å / 解像度の算出法: FSC 0.5 CUT-OFF 詳細: Final map includes data to 9.0 Ang resolution (fsc 0.5 cut-off), magnification of final map standardized to a map calculated from PV3 atomic coordinates (PDB accession no 1PVC) resulting in ...詳細: Final map includes data to 9.0 Ang resolution (fsc 0.5 cut-off), magnification of final map standardized to a map calculated from PV3 atomic coordinates (PDB accession no 1PVC) resulting in final pixel separation of 2.64 Ang |
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