+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7czt | ||||||
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タイトル | S protein of SARS-CoV-2 in complex bound with P5A-2G9 | ||||||
要素 |
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キーワード | VIRAL PROTEIN / SARS-CoV-2 / antibody | ||||||
機能・相同性 | 機能・相同性情報 CD22 mediated BCR regulation / Fc epsilon receptor (FCERI) signaling / Classical antibody-mediated complement activation / Initial triggering of complement / immunoglobulin complex / FCGR activation / immunoglobulin mediated immune response / Role of phospholipids in phagocytosis / Role of LAT2/NTAL/LAB on calcium mobilization / Scavenging of heme from plasma ...CD22 mediated BCR regulation / Fc epsilon receptor (FCERI) signaling / Classical antibody-mediated complement activation / Initial triggering of complement / immunoglobulin complex / FCGR activation / immunoglobulin mediated immune response / Role of phospholipids in phagocytosis / Role of LAT2/NTAL/LAB on calcium mobilization / Scavenging of heme from plasma / antigen binding / FCERI mediated Ca+2 mobilization / FCGR3A-mediated IL10 synthesis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / Regulation of Complement cascade / Cell surface interactions at the vascular wall / FCGR3A-mediated phagocytosis / FCERI mediated MAPK activation / Regulation of actin dynamics for phagocytic cup formation / FCERI mediated NF-kB activation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid 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 / adaptive immune response / Potential therapeutics for SARS / 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 / 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 / extracellular region / 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 | 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: 2.7 Å | ||||||
データ登録者 | Yan, R.H. / Zhang, Y.Y. / Li, Y.N. / Zhou, Q. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Res / 年: 2021 タイトル: Structural basis for bivalent binding and inhibition of SARS-CoV-2 infection by human potent neutralizing antibodies. 著者: Renhong Yan / Ruoke Wang / Bin Ju / Jinfang Yu / Yuanyuan Zhang / Nan Liu / Jia Wang / Qi Zhang / Peng Chen / Bing Zhou / Yaning Li / Yaping Shen / Shuyuan Zhang / Long Tian / Yingying Guo / ...著者: Renhong Yan / Ruoke Wang / Bin Ju / Jinfang Yu / Yuanyuan Zhang / Nan Liu / Jia Wang / Qi Zhang / Peng Chen / Bing Zhou / Yaning Li / Yaping Shen / Shuyuan Zhang / Long Tian / Yingying Guo / Lu Xia / Xinyue Zhong / Lin Cheng / Xiangyang Ge / Juanjuan Zhao / Hong-Wei Wang / Xinquan Wang / Zheng Zhang / Linqi Zhang / Qiang Zhou / 要旨: Neutralizing monoclonal antibodies (nAbs) to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) represent promising candidates for clinical intervention against coronavirus disease 2019 ...Neutralizing monoclonal antibodies (nAbs) to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) represent promising candidates for clinical intervention against coronavirus disease 2019 (COVID-19). We isolated a large number of nAbs from SARS-CoV-2-infected individuals capable of disrupting proper interaction between the receptor binding domain (RBD) of the viral spike (S) protein and the receptor angiotensin converting enzyme 2 (ACE2). However, the structural basis for their potent neutralizing activity remains unclear. Here, we report cryo-EM structures of the ten most potent nAbs in their native full-length IgG-form or in both IgG-form and Fab-form bound to the trimeric S protein of SARS-CoV-2. The bivalent binding of the full-length IgG is found to associate with more RBDs in the "up" conformation than the monovalent binding of Fab, perhaps contributing to the enhanced neutralizing activity of IgG and triggering more shedding of the S1 subunit from the S protein. Comparison of a large number of nAbs identified common and unique structural features associated with their potent neutralizing activities. This work provides a structural basis for further understanding the mechanism of nAbs, especially through revealing the bivalent binding and its correlation with more potent neutralization and the shedding of S1 subunit. | ||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7czt.cif.gz | 715.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7czt.ent.gz | 571.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7czt.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
文書・要旨 | 7czt_validation.pdf.gz | 2.7 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7czt_full_validation.pdf.gz | 2.8 MB | 表示 | |
XML形式データ | 7czt_validation.xml.gz | 107.4 KB | 表示 | |
CIF形式データ | 7czt_validation.cif.gz | 163.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/cz/7czt ftp://data.pdbj.org/pub/pdb/validation_reports/cz/7czt | HTTPS FTP |
-関連構造データ
関連構造データ | 30516MC 7czpC 7czqC 7czrC 7czsC 7czuC 7czvC 7czwC 7czxC 7czyC 7czzC 7d00C 7d03C 7d0bC 7d0cC 7d0dC 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 (文献) |
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類似構造データ |
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 142502.594 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) Severe acute respiratory syndrome coronavirus 2 (ウイルス) 遺伝子: S, 2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 #2: 抗体 | 分子量: 49457.594 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: IGHV3-33 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P01772, UniProt: P0DOX5 #3: タンパク質 | 分子量: 23854.383 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: IGL@ / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: A0A5C2GMM2, UniProt: Q8N5F4 #4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #5: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | Has protein modification | Y | |
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-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 |
-試料調製
構成要素 | 名称: S protein of SARS-CoV-2 in complex bound with P2B-2G9 タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
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 |
-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 / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-解析
EMソフトウェア | 名称: RELION / バージョン: 3.0.6 / カテゴリ: 3次元再構成 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 497874 / 対称性のタイプ: POINT |