+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-30484 | |||||||||
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タイトル | P17-H014 Fab cocktail in complex with SARS-CoV-2 spike protein | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | Cocktail / Complex / SARS-CoV-2 spike protein / Fab / VIRAL PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell ...Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Severe acute respiratory syndrome coronavirus 2 (ウイルス) / Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.2 Å | |||||||||
データ登録者 | Wang N / Wang X | |||||||||
引用 | ジャーナル: Cell Res / 年: 2021 タイトル: Rational development of a human antibody cocktail that deploys multiple functions to confer Pan-SARS-CoVs protection. 著者: Hangping Yao / Yao Sun / Yong-Qiang Deng / Nan Wang / Yongcong Tan / Na-Na Zhang / Xiao-Feng Li / Chao Kong / Yan-Peng Xu / Qi Chen / Tian-Shu Cao / Hui Zhao / Xintian Yan / Lei Cao / Zhe Lv ...著者: Hangping Yao / Yao Sun / Yong-Qiang Deng / Nan Wang / Yongcong Tan / Na-Na Zhang / Xiao-Feng Li / Chao Kong / Yan-Peng Xu / Qi Chen / Tian-Shu Cao / Hui Zhao / Xintian Yan / Lei Cao / Zhe Lv / Dandan Zhu / Rui Feng / Nanping Wu / Wenhai Zhang / Yuhao Hu / Keda Chen / Rong-Rong Zhang / Qingyu Lv / Shihui Sun / Yunhua Zhou / Run Yan / Guan Yang / Xinglu Sun / Chanjuan Liu / Xiangyun Lu / Linfang Cheng / Hongying Qiu / Xing-Yao Huang / Tianhao Weng / Danrong Shi / Weidong Jiang / Junbin Shao / Lei Wang / Jie Zhang / Tao Jiang / Guojun Lang / Cheng-Feng Qin / Lanjuan Li / Xiangxi Wang / 要旨: Structural principles underlying the composition and synergistic mechanisms of protective monoclonal antibody cocktails are poorly defined. Here, we exploited antibody cooperativity to develop a ...Structural principles underlying the composition and synergistic mechanisms of protective monoclonal antibody cocktails are poorly defined. Here, we exploited antibody cooperativity to develop a therapeutic antibody cocktail against SARS-CoV-2. On the basis of our previously identified humanized cross-neutralizing antibody H014, we systematically analyzed a fully human naive antibody library and rationally identified a potent neutralizing antibody partner, P17, which confers effective protection in animal model. Cryo-EM studies dissected the nature of the P17 epitope, which is SARS-CoV-2 specific and distinctly different from that of H014. High-resolution structure of the SARS-CoV-2 spike in complex with H014 and P17, together with functional investigations revealed that in a two-antibody cocktail, synergistic neutralization was achieved by S1 shielding and conformational locking, thereby blocking receptor attachment and viral membrane fusion, conferring high potency as well as robustness against viral mutation escape. Furthermore, cluster analysis identified a hypothetical 3rd antibody partner for further reinforcing the cocktail as pan-SARS-CoVs therapeutics. | |||||||||
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_30484.map.gz | 227.2 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-30484-v30.xml emd-30484.xml | 18.3 KB 18.3 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_30484.png | 146.4 KB | ||
Filedesc metadata | emd-30484.cif.gz | 6.7 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-30484 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30484 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_30484_validation.pdf.gz | 524.7 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_30484_full_validation.pdf.gz | 524.2 KB | 表示 | |
XML形式データ | emd_30484_validation.xml.gz | 6.8 KB | 表示 | |
CIF形式データ | emd_30484_validation.cif.gz | 7.9 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30484 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-30484 | 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_30484.map.gz / 形式: CCP4 / 大きさ: 244.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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: 1.04 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 : H014 and P17 Fab cocktail in complex with SARS-CoV-2 spike protein
+超分子 #1: H014 and P17 Fab cocktail in complex with SARS-CoV-2 spike protein
+超分子 #2: SARS-CoV-2 spike protein
+超分子 #3: P17 Fab
+超分子 #4: H014 Fab
+分子 #1: Spike glycoprotein
+分子 #2: heavy chain of P17 Fab
+分子 #3: light chain of P17 Fab
+分子 #4: light chain of H014 Fab
+分子 #5: heavy chain of H014 Fab
+分子 #7: 2-acetamido-2-deoxy-beta-D-glucopyranose
-実験情報
-構造解析
手法 | 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
緩衝液 | pH: 8 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 QUANTUM (4k x 4k) 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: DARK FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: RANDOM CONICAL TILT |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 175063 |
初期 角度割当 | タイプ: RANDOM ASSIGNMENT |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |