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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: 7whk | ||||||
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タイトル | The state 3 complex structure of Omicron spike with Bn03 (2-up RBD, 5 nanobodies) | ||||||
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![]() | VIRAL PROTEIN / Omicron / Spike / Nanobody | ||||||
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 / symbiont-mediated suppression of host innate immune response / 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: 3.01 Å | ||||||
![]() | Zhan, W.Q. / Zhang, X. / Chen, Z.G. / Sun, L. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Broad neutralization of SARS-CoV-2 variants by an inhalable bispecific single-domain antibody. 著者: Cheng Li / Wuqiang Zhan / Zhenlin Yang / Chao Tu / Gaowei Hu / Xiang Zhang / Wenping Song / Shujuan Du / Yuanfei Zhu / Keke Huang / Yu Kong / Meng Zhang / Qiyu Mao / Xiaodan Gu / Yi Zhang / ...著者: Cheng Li / Wuqiang Zhan / Zhenlin Yang / Chao Tu / Gaowei Hu / Xiang Zhang / Wenping Song / Shujuan Du / Yuanfei Zhu / Keke Huang / Yu Kong / Meng Zhang / Qiyu Mao / Xiaodan Gu / Yi Zhang / Youhua Xie / Qiang Deng / Yuanlin Song / Zhenguo Chen / Lu Lu / Shibo Jiang / Yanling Wu / Lei Sun / Tianlei Ying / ![]() 要旨: The effectiveness of SARS-CoV-2 vaccines and therapeutic antibodies have been limited by the continuous emergence of viral variants and by the restricted diffusion of antibodies from circulation into ...The effectiveness of SARS-CoV-2 vaccines and therapeutic antibodies have been limited by the continuous emergence of viral variants and by the restricted diffusion of antibodies from circulation into the sites of respiratory virus infection. Here, we report the identification of two highly conserved regions on the Omicron variant receptor-binding domain recognized by broadly neutralizing antibodies. Furthermore, we generated a bispecific single-domain antibody that was able to simultaneously and synergistically bind these two regions on a single Omicron variant receptor-binding domain as revealed by cryo-EM structures. We demonstrated that this bispecific antibody can be effectively delivered to lung via inhalation administration and exhibits exquisite neutralization breadth and therapeutic efficacy in mouse models of SARS-CoV-2 infections. Importantly, this study also deciphered an uncommon and highly conserved cryptic epitope within the spike trimeric interface that may have implications for the design of broadly protective SARS-CoV-2 vaccines and therapeutics. | ||||||
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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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PDBx/mmCIF形式 | ![]() | 655.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 541.9 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 | ![]() 32503MC ![]() 7whiC ![]() 7whjC 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: 142506.000 Da / 分子数: 3 / 変異: hexaPro mutations / 由来タイプ: 組換発現 詳細: residues 682-685 are substitution at furin cleavage site. T4 fibritin trimerization motif and twin strep II tag and 8 His were introduced at C terminal. 由来: (組換発現) ![]() ![]() 遺伝子: S, 2 / Variant: omicron / 発現宿主: ![]() #2: 抗体 | 分子量: 13170.492 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: タンパク質 | 分子量: 14195.451 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | |
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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): 2500 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 58 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: 1.17.1_3660: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.01 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 170469 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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