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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: 8jap | ||||||
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| タイトル | Cryo-EM structure of SARS-CoV-2 WT RBD in complex with W328-6H2 (local refinement) | ||||||
要素 |
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キーワード | VIRAL PROTEIN / Cryo-EM / Complex / SARS-CoV-2 / antibody / Homo sapiens / IgG / RBD / local refinement | ||||||
| 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: 3.81 Å | ||||||
データ登録者 | Nan, X.Y. / Li, Y.J. | ||||||
| 資金援助 | 1件
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引用 | ジャーナル: Nat Commun / 年: 2024タイトル: Exploring distinct modes of inter-spike cross-linking for enhanced neutralization by SARS-CoV-2 antibodies. 著者: Xuanyu Nan / Yujie Li / Rui Zhang / Ruoke Wang / Niannian Lv / Jiayi Li / Yuanfang Chen / Bini Zhou / Yangjunqi Wang / Ziyi Wang / Jiayi Zhu / Jing Chen / Jinqian Li / Wenlong Chen / Qi Zhang ...著者: Xuanyu Nan / Yujie Li / Rui Zhang / Ruoke Wang / Niannian Lv / Jiayi Li / Yuanfang Chen / Bini Zhou / Yangjunqi Wang / Ziyi Wang / Jiayi Zhu / Jing Chen / Jinqian Li / Wenlong Chen / Qi Zhang / Xuanling Shi / Changwen Zhao / Chunying Chen / Zhihua Liu / Yuliang Zhao / Dongsheng Liu / Xinquan Wang / Li-Tang Yan / Taisheng Li / Linqi Zhang / Yuhe R Yang / ![]() 要旨: The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its Omicron subvariants drastically amplifies transmissibility, infectivity, and immune escape, mainly due to their ...The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its Omicron subvariants drastically amplifies transmissibility, infectivity, and immune escape, mainly due to their resistance to most neutralizing antibodies. Thus, exploring the mechanisms underlying antibody evasion is crucial. Although the full-length native form of antibody, immunoglobulin G (IgG), offers valuable insights into the neutralization, structural investigations primarily focus on the fragment of antigen-binding (Fab). Here, we employ single-particle cryo-electron microscopy (cryo-EM) to characterize a W328-6H2 antibody, in its native IgG form complexed with severe acute respiratory syndrome (SARS), severe acute respiratory syndrome coronavirus 2 wild-type (WT) and Omicron variant BA.1 spike protein (S). Three high-resolution structures reveal that the full-length IgG forms a centered head-to-head dimer of trimer when binds fully stoichiometrically with both SARS and WT S, while adopting a distinct offset configuration with Omicron BA.1 S. Combined with functional assays, our results suggest that, beyond the binding affinity between the RBD epitope and Fab, the higher-order architectures of S trimer and full-length IgG play an additional role in neutralization, enriching our understanding of enhanced neutralization by SARS-CoV-2 antibodies. | ||||||
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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 | 8jap.cif.gz | 106.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8jap.ent.gz | 75.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8jap.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/ja/8jap ftp://data.pdbj.org/pub/pdb/validation_reports/ja/8jap | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 36121MC ![]() 8jagC ![]() 8jamC 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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要素
| #1: タンパク質 | 分子量: 61089.957 Da / 分子数: 1 / 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: 11654.112 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: Homo sapiens (ヒト) | ||||
| #3: 抗体 | 分子量: 12276.692 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: Homo sapiens (ヒト) | ||||
| #4: 糖 | | 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: 7.4 | ||||||||||||||||||||||||||||
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||
| 試料支持 | グリッドのタイプ: Quantifoil R2/1 | ||||||||||||||||||||||||||||
| 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: FEI TITAN 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): 1600 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア | 名称: Gctf / カテゴリ: CTF補正 |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3次元再構成 | 解像度: 3.81 Å / 解像度の算出法: FSC 0.5 CUT-OFF / 粒子像の数: 146713 / 対称性のタイプ: POINT |
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Homo sapiens (ヒト)
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