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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: 8hld | ||||||
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タイトル | S protein of SARS-CoV-2 in complex with 26434 | ||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / SARS-CoV-2 / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex | ||||||
機能・相同性 | ![]() Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression 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 / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / membrane fusion / Attachment and Entry / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / receptor ligand activity / endocytosis involved in viral entry into host cell / 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 | ![]() ![]() ![]() | ||||||
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: 2.8 Å | ||||||
![]() | Zhang, Y.Y. / Guo, Y.Y. / Zhou, Q. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Defining the features and structure of neutralizing antibody targeting the silent face of the SARS-CoV-2 spike N-terminal domain. 著者: Zhaoyong Zhang / Yuanyuan Zhang / Yuting Zhang / Linling Cheng / Lu Zhang / Qihong Yan / Xuesong Liu / Jiantao Chen / Jun Dai / Yingying Guo / Peilan Wei / Xinyi Xiong / Juxue Xiao / Airu Zhu ...著者: Zhaoyong Zhang / Yuanyuan Zhang / Yuting Zhang / Linling Cheng / Lu Zhang / Qihong Yan / Xuesong Liu / Jiantao Chen / Jun Dai / Yingying Guo / Peilan Wei / Xinyi Xiong / Juxue Xiao / Airu Zhu / Jianfen Zhuo / Ruoxi Cai / Jingjun Zhang / Haiyue Rao / Bin Qu / Shengnan Zhang / Jiaxin Feng / Jinling Cheng / Jingyi Su / Canjie Chen / Shu Li / Yuanyuan Zhang / Lei Chen / Yingkang Jin / Yonghao Xu / Xiaoqing Liu / Yimin Li / Jingxian Zhao / Yanqun Wang / Qiang Zhou / Jincun Zhao / ![]() 要旨: Research on virus/receptor interactions has uncovered various mechanisms of antibody-mediated neutralization against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, ...Research on virus/receptor interactions has uncovered various mechanisms of antibody-mediated neutralization against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, understanding of neutralization by antibodies targeting the silent face, which recognize epitopes on glycan shields, remains limited, and their potential protective efficacy in vivo is not well understood. This study describes a silent face neutralizing antibody, 3711, which targets a non-supersite on the N-terminal domain (NTD) of the spike protein. Cryo-EM structure determination of the 3711 Fab in the spike complex reveals a novel neutralizing epitope shielded by glycans on the spike's silent face. Antibody 3711 inhibits the interaction between the receptor-binding domain (RBD) and human angiotensin-converting enzyme 2 (hACE2) through steric hindrance and exhibits superior in vivo protective effects compared to other reported NTD-targeted monoclonal antibodies (mAbs). Competition assays and antibody repertoire analysis indicate the rarity of antibodies targeting the 3711-related epitope in SARS-CoV-2 convalescents, suggesting the infrequency of NTD silent face-targeted neutralizing antibodies during SARS-CoV-2 infection. As the first NTD silent face-targeted neutralizing antibody against SARS-CoV-2, the identification of mAb 3711, with its novel neutralizing mechanism, enhances our understanding of neutralizing epitopes on glycan shields and elucidates epitope-guided viral mutations that evade specific antibodies. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 816.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 661.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 34874MC ![]() 8hlcC 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 ![]() |
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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: 142530.656 Da / 分子数: 3 / 変異: 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: ![]() #2: 抗体 | 分子量: 28890.623 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: 抗体 | 分子量: 23868.605 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #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 |
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試料調製
構成要素 | 名称: S protein of SARS-CoV-2 in complex with 26434 / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1200 nm / 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) |
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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: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 301292 / 対称性のタイプ: POINT |