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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: 7xdb | ||||||
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タイトル | Cryo-EM structure of SARS-CoV-2 Omicron Spike protein in complex with BA7208 fab | ||||||
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![]() | VIRAL PROTEIN | ||||||
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 / suppression by virus 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 / suppression by virus of host tetherin activity / 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 / 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: 2.62 Å | ||||||
![]() | Liu, Z. / Liu, S. / Gao, Y.Z. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Biparatopic antibody BA7208/7125 effectively neutralizes SARS-CoV-2 variants including Omicron BA.1-BA.5. 著者: Yanqun Wang / An Yan / Deyong Song / Chuangchuang Dong / Muding Rao / Yuanzhu Gao / Ruxi Qi / Xiaomin Ma / Qiaoping Wang / Hongguang Xu / Hong Liu / Jing Han / Maoqin Duan / Shuo Liu / ...著者: Yanqun Wang / An Yan / Deyong Song / Chuangchuang Dong / Muding Rao / Yuanzhu Gao / Ruxi Qi / Xiaomin Ma / Qiaoping Wang / Hongguang Xu / Hong Liu / Jing Han / Maoqin Duan / Shuo Liu / Xiaoping Yu / Mengqi Zong / Jianxia Feng / Jie Jiao / Huimin Zhang / Min Li / Beibei Yu / Yanxia Wang / Fanhao Meng / Xiaodan Ni / Ying Li / Zhenduo Shen / Baiping Sun / Xin Shao / Haifeng Zhao / Yanyan Zhao / Rui Li / Yanan Zhang / Guangying Du / Jun Lu / Chunna You / Hua Jiang / Lu Zhang / Lan Wang / Changlin Dou / Zheng Liu / Jincun Zhao / ![]() 要旨: SARS-CoV-2 Omicron subvariants have demonstrated extensive evasion from monoclonal antibodies (mAbs) developed for clinical use, which raises an urgent need to develop new broad-spectrum mAbs. Here, ...SARS-CoV-2 Omicron subvariants have demonstrated extensive evasion from monoclonal antibodies (mAbs) developed for clinical use, which raises an urgent need to develop new broad-spectrum mAbs. Here, we report the isolation and analysis of two anti-RBD neutralizing antibodies BA7208 and BA7125 from mice engineered to produce human antibodies. While BA7125 showed broadly neutralizing activity against all variants except the Omicron sublineages, BA7208 was potently neutralizing against all tested SARS-CoV-2 variants (including Omicron BA.1-BA.5) except Mu. By combining BA7208 and BA7125 through the knobs-into-holes technology, we generated a biparatopic antibody BA7208/7125 that was able to neutralize all tested circulating SARS-CoV-2 variants. Cryo-electron microscopy structure of these broad-spectrum antibodies in complex with trimeric Delta and Omicron spike indicated that the contact residues are highly conserved and had minimal interactions with mutational residues in RBD of current variants. In addition, we showed that administration of BA7208/7125 via the intraperitoneal, intranasal, or aerosol inhalation route showed potent therapeutic efficacy against Omicron BA.1 and BA.2 in hACE2-transgenic and wild-type mice and, separately, effective prophylaxis. BA7208/7125 thus has the potential to be an effective candidate as an intervention against COVID-19. | ||||||
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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 | ![]() | 671.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 548.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.9 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2 MB | 表示 | |
XML形式データ | ![]() | 114.2 KB | 表示 | |
CIF形式データ | ![]() | 174.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 33142MC ![]() 7xczC ![]() 7xdaC ![]() 7xdkC ![]() 7xdlC 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: 抗体 | 分子量: 11628.880 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | 分子量: 124036.930 Da / 分子数: 3 / Mutation: 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 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() #3: 抗体 | 分子量: 13181.793 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 | |
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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 |
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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: 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): 5000 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 1.39 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
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.62 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 439731 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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