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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: 9l15 | |||||||||
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| タイトル | Structure of SARS-CoV-2 EG.5.1 Variant Spike protein complexed with antibody XGi-203 | |||||||||
要素 |
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キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / Spike-antibody complex / 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: 2.95 Å | |||||||||
データ登録者 | Qiu, Y.N. / Sun, L. | |||||||||
| 資金援助 | 中国, 2件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Orphan broadly RBD-binding antibodies annotate three remaining conserved RBD epitopes along SARS-CoV-2 evolution. 著者: Minxiang Xie / Yinong Qiu / Xiaoyu Zhao / Jialu Shi / Yuanchen Liu / Qingsong Zhang / Jiaying He / Jiayan Li / Luotian Liu / Siyuan Sun / Yuzhen Zhu / Qiyu Mao / Yiming Long / Thiago Y ...著者: Minxiang Xie / Yinong Qiu / Xiaoyu Zhao / Jialu Shi / Yuanchen Liu / Qingsong Zhang / Jiaying He / Jiayan Li / Luotian Liu / Siyuan Sun / Yuzhen Zhu / Qiyu Mao / Yiming Long / Thiago Y Oliveira / Zijun Wang / Yunjiao Zhou / Yan Yan / Anqi Xia / Wenjing Zai / Christian T Mayer / Youhua Xie / Shibo Jiang / Lu Lu / Rong Xia / Fan Wu / Lei Sun / Pengfei Wang / Hin Chu / Qiao Wang / ![]() 要旨: The receptor-binding domain (RBD) of the SARS-CoV-2 spike (S) protein continues to evolve, facilitating antibody evasion. It remains unclear whether any conserved RBD epitopes persist across SARS-CoV- ...The receptor-binding domain (RBD) of the SARS-CoV-2 spike (S) protein continues to evolve, facilitating antibody evasion. It remains unclear whether any conserved RBD epitopes persist across SARS-CoV-2 variants and whether vaccination and/or breakthrough infection (BTI) can elicit antibodies capable of targeting these conserved regions to counter future variants. Here, using a heterogeneous double-bait single B-cell sorting strategy, we identify a subset of antibodies with broad-spectrum RBD binding, including recognition of SARS-CoV-1 and emerging variants such as EG.5.1, BA.2.86, JN.1, and KP.2/3. These broadly binding antibodies (bbAbs) exhibit elevated levels of somatic hypermutation but are infrequently derived from clonally expanded B lymphocytes. Passive transfer of representative bbAbs reduces viral infection in a male hamster model. Structural analyses reveals that these bbAbs primarily target three distinct, highly conserved RBD epitopes, suggesting potential regions of future mutational pressure and highlighting the presence of conserved and immunogenic RBD conformations that may serve as a foundation for the development of broadly protective vaccines. | |||||||||
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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 | 9l15.cif.gz | 790.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9l15.ent.gz | 633.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9l15.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/l1/9l15 ftp://data.pdbj.org/pub/pdb/validation_reports/l1/9l15 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 62734MC ![]() 9kzdC ![]() 9kzeC ![]() 9kzzC ![]() 9l05C ![]() 9l07C ![]() 9l2lC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
-タンパク質 , 1種, 3分子 CBA
| #3: タンパク質 | 分子量: 143147.594 Da / 分子数: 3 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 株: Omicron/EG.5.1 / 遺伝子: S, 2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DTC2 |
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-抗体 , 2種, 6分子 HIJLMN
| #1: 抗体 | 分子量: 49637.832 Da / 分子数: 3 / 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)#2: 抗体 | 分子量: 23255.408 Da / 分子数: 3 / 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) |
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-糖 , 3種, 40分子 
| #4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #5: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #6: 糖 | ChemComp-NAG / |
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-詳細
| 研究の焦点であるリガンドがあるか | Y |
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| 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
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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): 1000 nm |
| 撮影 | 電子線照射量: 50 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
| EMソフトウェア | 名称: PHENIX / バージョン: 1.17.1_3660 / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.95 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 32232 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)

中国, 2件
引用



















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