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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: 8di5 | |||||||||
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| タイトル | Cryo-EM structure of SARS-CoV-2 Beta (B.1.351) spike protein in complex with VH domain F6 (focused refinement of RBD and VH F6) | |||||||||
要素 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / SARS-CoV-2 / glycoprotein / fusion protein / viral protein / VH domain / F6 / VIRAL PROTEIN-IMMUNE SYSTEM complex | |||||||||
| 機能・相同性 | 機能・相同性情報symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular region / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / positive regulation of viral entry into host cell ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular region / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / positive regulation of viral entry into host cell / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / entry receptor-mediated virion attachment to host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / endocytosis involved in viral entry into host cell / receptor ligand activity / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / virion attachment to host cell / host cell plasma membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / membrane / identical protein binding / plasma membrane 類似検索 - 分子機能 | |||||||||
| 生物種 | ![]() Homo sapiens (ヒト) | |||||||||
| 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: 3.04 Å | |||||||||
データ登録者 | Zhu, X. / Saville, J.W. / Mannar, D. / Berezuk, A.M. / Subramaniam, S. | |||||||||
| 資金援助 | カナダ, 2件
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引用 | ジャーナル: iScience / 年: 2022タイトル: Potent and broad neutralization of SARS-CoV-2 variants of concern (VOCs) including omicron sub-lineages BA.1 and BA.2 by biparatopic human VH domains. 著者: Chuan Chen / James W Saville / Michelle M Marti / Alexandra Schäfer / Mary Hongying Cheng / Dhiraj Mannar / Xing Zhu / Alison M Berezuk / Anupam Banerjee / Michele D Sobolewski / Andrew Kim ...著者: Chuan Chen / James W Saville / Michelle M Marti / Alexandra Schäfer / Mary Hongying Cheng / Dhiraj Mannar / Xing Zhu / Alison M Berezuk / Anupam Banerjee / Michele D Sobolewski / Andrew Kim / Benjamin R Treat / Priscila Mayrelle Da Silva Castanha / Nathan Enick / Kevin D McCormick / Xianglei Liu / Cynthia Adams / Margaret Grace Hines / Zehua Sun / Weizao Chen / Jana L Jacobs / Simon M Barratt-Boyes / John W Mellors / Ralph S Baric / Ivet Bahar / Dimiter S Dimitrov / Sriram Subramaniam / David R Martinez / Wei Li / ![]() 要旨: The emergence of SARS-CoV-2 variants of concern (VOCs) requires the development of next-generation biologics with high neutralization breadth. Here, we characterized a human V domain, F6, which we ...The emergence of SARS-CoV-2 variants of concern (VOCs) requires the development of next-generation biologics with high neutralization breadth. Here, we characterized a human V domain, F6, which we generated by sequentially panning large phage-displayed V libraries against receptor binding domains (RBDs) containing VOC mutations. Cryo-EM analyses reveal that F6 has a unique binding mode that spans a broad surface of the RBD and involves the antibody framework region. Attachment of an Fc region to a fusion of F6 and ab8, a previously characterized V domain, resulted in a construct (F6-ab8-Fc) that broadly and potently neutralized VOCs including Omicron. Additionally, prophylactic treatment using F6-ab8-Fc reduced live Beta (B.1.351) variant viral titers in the lungs of a mouse model. Our results provide a new potential therapeutic against SARS-CoV-2 variants including Omicron and highlight a vulnerable epitope within the spike that may be exploited to achieve broad protection against circulating variants. | |||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 8di5.cif.gz | 95.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8di5.ent.gz | 55.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8di5.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/di/8di5 ftp://data.pdbj.org/pub/pdb/validation_reports/di/8di5 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 27439MC 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 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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| 1 |
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要素
| #1: タンパク質 | 分子量: 142319.453 Da / 分子数: 1 変異: R682G,R683S,R685S,F817P,A892P,A899P,A942P,K986P,V987P 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: S, 2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 |
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| #2: 抗体 | 分子量: 13112.434 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: ![]() |
| #3: 糖 | ChemComp-NAG / |
| 研究の焦点であるリガンドがあるか | N |
| 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 |
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| 由来(天然) |
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| 由来(組換発現) |
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| 緩衝液 | pH: 8 | ||||||||||||||||||||||||
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||
| 急速凍結 | 凍結剤: ETHANE |
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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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 500 nm |
| 撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
| ソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.04 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 57496 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 98.3 Å2 | ||||||||||||||||||||||||
| 拘束条件 |
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万見について





Homo sapiens (ヒト)
カナダ, 2件
引用


PDBj








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