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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: 7uzc | ||||||
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タイトル | Structure of the SARS-CoV-2 RBD in complex with the mouse antibody Fab fragment, M8a-34 | ||||||
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![]() | IMMUNE SYSTEM/VIRAL PROTEIN / immune system / neutralizing antibody / IMMUNE SYSTEM-VIRAL PROTEIN 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 | ![]() ![]() ![]() | ||||||
![]() | Fan, C. / Bjorkman, P.J. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Neutralizing monoclonal antibodies elicited by mosaic RBD nanoparticles bind conserved sarbecovirus epitopes. 著者: Chengcheng Fan / Alexander A Cohen / Miso Park / Alfur Fu-Hsin Hung / Jennifer R Keeffe / Priyanthi N P Gnanapragasam / Yu E Lee / Han Gao / Leesa M Kakutani / Ziyan Wu / Harry Kleanthous / ...著者: Chengcheng Fan / Alexander A Cohen / Miso Park / Alfur Fu-Hsin Hung / Jennifer R Keeffe / Priyanthi N P Gnanapragasam / Yu E Lee / Han Gao / Leesa M Kakutani / Ziyan Wu / Harry Kleanthous / Kathryn E Malecek / John C Williams / Pamela J Bjorkman / ![]() 要旨: Increased immune evasion by SARS-CoV-2 variants of concern highlights the need for new therapeutic neutralizing antibodies. Immunization with nanoparticles co-displaying spike receptor-binding ...Increased immune evasion by SARS-CoV-2 variants of concern highlights the need for new therapeutic neutralizing antibodies. Immunization with nanoparticles co-displaying spike receptor-binding domains (RBDs) from eight sarbecoviruses (mosaic-8 RBD-nanoparticles) efficiently elicits cross-reactive polyclonal antibodies against conserved sarbecovirus RBD epitopes. Here, we identified monoclonal antibodies (mAbs) capable of cross-reactive binding and neutralization of animal sarbecoviruses and SARS-CoV-2 variants by screening single mouse B cells secreting IgGs that bind two or more sarbecovirus RBDs. Single-particle cryo-EM structures of antibody-spike complexes, including a Fab-Omicron complex, mapped neutralizing mAbs to conserved class 1/4 RBD epitopes. Structural analyses revealed neutralization mechanisms, potentials for intra-spike trimer cross-linking by IgGs, and induced changes in trimer upon Fab binding. In addition, we identified a mAb-resembling Bebtelovimab, an EUA-approved human class 3 anti-RBD mAb. These results support using mosaic RBD-nanoparticle vaccination to generate and identify therapeutic pan-sarbecovirus and pan-variant mAbs. | ||||||
履歴 |
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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 | ![]() | 275.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 216.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
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 | ![]() 7uz4C ![]() 7uz5C ![]() 7uz6C ![]() 7uz7C ![]() 7uz8C ![]() 7uz9C ![]() 7uzaC ![]() 7uzbC ![]() 7uzdC ![]() 7sc1S S: 精密化の開始モデル 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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単位格子 |
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要素
-抗体 , 2種, 4分子 EHFL
#2: 抗体 | 分子量: 25507.477 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: 抗体 | 分子量: 23955.605 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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-タンパク質 / 非ポリマー , 2種, 489分子 AB

#1: タンパク質 | 分子量: 25994.311 Da / 分子数: 2 / 断片: RBD / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: S, 2 / 発現宿主: ![]() #6: 水 | ChemComp-HOH / | |
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-糖 , 2種, 2分子
#4: 多糖 | alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
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#5: 多糖 | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
-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: ![]() |
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試料調製
結晶 | マシュー密度: 2.68 Å3/Da / 溶媒含有率: 54.05 % |
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結晶化 | 温度: 293 K / 手法: 蒸気拡散法, シッティングドロップ法 詳細: 2% v/v tacsimate pH 4.0, 0.1 M sodium acetate trihydrate pH 4.6, 16 % PEG 3350 |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS PILATUS 6M / 検出器: PIXEL / 日付: 2021年11月19日 |
放射 | モノクロメーター: Si(111) / プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 0.97946 Å / 相対比: 1 |
反射 | 解像度: 2.2→39.45 Å / Num. obs: 79165 / % possible obs: 98.6 % / 冗長度: 7 % / Biso Wilson estimate: 41.38 Å2 / CC1/2: 0.997 / Rmerge(I) obs: 0.12 / Rpim(I) all: 0.048 / Rrim(I) all: 0.13 / Χ2: 0.98 / Net I/σ(I): 9.9 |
反射 シェル | 解像度: 2.2→2.24 Å / 冗長度: 6.7 % / Rmerge(I) obs: 1.611 / Mean I/σ(I) obs: 1.2 / Num. unique obs: 4396 / CC1/2: 0.608 / Rpim(I) all: 0.663 / Rrim(I) all: 1.746 / Χ2: 0.96 / % possible all: 96.4 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 開始モデル: 7SC1 解像度: 2.2→39.23 Å / SU ML: 0.32 / 交差検証法: THROUGHOUT / σ(F): 1.34 / 位相誤差: 27.47 / 立体化学のターゲット値: ML
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溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso max: 110.99 Å2 / Biso mean: 47.0176 Å2 / Biso min: 21.89 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: final / 解像度: 2.2→39.23 Å
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LS精密化 シェル | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 14
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