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基本情報
登録情報 | ![]() | |||||||||
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タイトル | nsEM maps of coxsackievirus A21 viral particle alone and in complex with mouse polyclonal antibodies | |||||||||
![]() | nsEM map of CV-A21 viral particle in complex with mouse polyclonal antibodies (antigen-specific) | |||||||||
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![]() | polyclonal antibodies / immune complex / negative stain EM / VIRUS / VIRUS-IMMUNE SYSTEM complex | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / ネガティブ染色法 / 解像度: 15.0 Å | |||||||||
![]() | Antanasijevic A / Ward AB | |||||||||
資金援助 | 1件
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![]() | ![]() タイトル: High-resolution structural analysis of enterovirus-reactive polyclonal antibodies in complex with whole virions. 著者: Aleksandar Antanasijevic / Autumn J Schulze / Vijay S Reddy / Andrew B Ward / ![]() 要旨: Non-polio enteroviruses (NPEVs) cause serious illnesses in young children and neonates, including aseptic meningitis, encephalitis, and inflammatory muscle disease, among others. While over 100 ...Non-polio enteroviruses (NPEVs) cause serious illnesses in young children and neonates, including aseptic meningitis, encephalitis, and inflammatory muscle disease, among others. While over 100 serotypes have been described to date, vaccine only exists for EV-A71. Efforts toward rationally designed pan-NPEV vaccines would greatly benefit from structural biology methods for rapid and comprehensive evaluation of vaccine candidates and elicited antibody responses. Toward this goal, we introduced a cryo-electron-microscopy-based approach for structural analysis of virus- or vaccine-elicited polyclonal antibodies (pAbs) in complex with whole NPEV virions. We demonstrated the feasibility using coxsackievirus A21 and reconstructed five structurally distinct pAbs bound to the virus. The pAbs targeted two immunodominant epitopes, one overlapping with the receptor binding site. These results demonstrate that our method can be applied to map broad-spectrum polyclonal immune responses against intact virions and define potentially cross-reactive epitopes. | |||||||||
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画像 | ![]() | 166.3 KB | ||
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その他 | ![]() ![]() | 33.6 MB 34.4 MB | ||
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文書・要旨 | ![]() | 398.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 397.8 KB | 表示 | |
XML形式データ | ![]() | 6.8 KB | 表示 | |
CIF形式データ | ![]() | 7.8 KB | 表示 | |
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リンク
EMDBのページ | ![]() ![]() |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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注釈 | nsEM map of CV-A21 viral particle in complex with mouse polyclonal antibodies (antigen-specific) | ||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.77 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-追加マップ: nsEM map of CV-A21 viral particle
ファイル | emd_26065_additional_1.map | ||||||||||||
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注釈 | nsEM map of CV-A21 viral particle | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: nsEM map of CV-A21 viral particle in complex...
ファイル | emd_26065_additional_2.map | ||||||||||||
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注釈 | nsEM map of CV-A21 viral particle in complex with mouse polyclonal antibodies (non-specific) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Immune complexes featuring coxsackievirus A21 (CV-A21) viral part...
全体 | 名称: Immune complexes featuring coxsackievirus A21 (CV-A21) viral particles by themselves or in complex with mouse polyclonal antibodies (reconstructed by nsEM) |
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要素 |
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-超分子 #1: Immune complexes featuring coxsackievirus A21 (CV-A21) viral part...
超分子 | 名称: Immune complexes featuring coxsackievirus A21 (CV-A21) viral particles by themselves or in complex with mouse polyclonal antibodies (reconstructed by nsEM) タイプ: complex / ID: 1 / 親要素: 0 詳細: The 3 submitted maps feature nsEM reconstructions of: 1) CV-A21 in complex with mouse polyclonal antibodies (antigen-specific) 2) CV-A21 in complex with mouse polyclonal antibodies (non-specific) 3) CV-A21 alone |
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由来(天然) | 生物種: ![]() |
-実験情報
-構造解析
手法 | ネガティブ染色法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.1 mg/mL | |||||||||
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緩衝液 | pH: 7.4 構成要素:
詳細: TBS, 0.2um filtered | |||||||||
染色 | タイプ: NEGATIVE / 材質: Uranyl formate / 詳細: The samples were stained with UF for 60s. | |||||||||
グリッド | モデル: Homemade / 材質: COPPER / メッシュ: 400 / 支持フィルム - 材質: CARBON / 前処理 - タイプ: PLASMA CLEANING / 前処理 - 時間: 30 sec. | |||||||||
詳細 | The complex was generated by incubation of mouse polyclonal antibodies with recombinantly expressed CV-A21 virions and subsequent SEC purification. |
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電子顕微鏡法
顕微鏡 | FEI TECNAI F20 |
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撮影 | フィルム・検出器のモデル: TVIPS TEMCAM-F416 (4k x 4k) 平均電子線量: 25.0 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 70.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.2 mm / 最大 デフォーカス(公称値): 1.5 µm / 最小 デフォーカス(公称値): 1.5 µm / 倍率(公称値): 62000 |
試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC |
実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |