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- PDB-7xst: Cryo-EM structure of SARS-CoV-2 Omicron spike glycoprotein in com... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7xst | ||||||
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Title | Cryo-EM structure of SARS-CoV-2 Omicron spike glycoprotein in complex with three F61 Fab and three D2 Fab | ||||||
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![]() | VIRAL PROTEIN / SARS-CoV-2 / Omicron spike / antibody | ||||||
Function / homology | ![]() Maturation of spike protein / viral translation / Translation of Structural Proteins / host cell surface / Virion Assembly and Release / 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 / host cell surface / Virion Assembly and Release / 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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / Attachment and Entry / 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 Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.04 Å | ||||||
![]() | Wang, X. / Li, X. | ||||||
Funding support | 1items
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![]() | ![]() Title: Structural basis of a two-antibody cocktail exhibiting highly potent and broadly neutralizing activities against SARS-CoV-2 variants including diverse Omicron sublineages. Authors: Xiaoman Li / Yongbing Pan / Qiangling Yin / Zejun Wang / Sisi Shan / Laixing Zhang / Jinfang Yu / Yuanyuan Qu / Lina Sun / Fang Gui / Jia Lu / Zhaofei Jing / Wei Wu / Tao Huang / Xuanling ...Authors: Xiaoman Li / Yongbing Pan / Qiangling Yin / Zejun Wang / Sisi Shan / Laixing Zhang / Jinfang Yu / Yuanyuan Qu / Lina Sun / Fang Gui / Jia Lu / Zhaofei Jing / Wei Wu / Tao Huang / Xuanling Shi / Jiandong Li / Xinguo Li / Dexin Li / Shiwen Wang / Maojun Yang / Linqi Zhang / Kai Duan / Mifang Liang / Xiaoming Yang / Xinquan Wang / ![]() Abstract: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs), especially the latest Omicron, have exhibited severe antibody evasion. Broadly neutralizing antibodies ...The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs), especially the latest Omicron, have exhibited severe antibody evasion. Broadly neutralizing antibodies with high potency against Omicron are urgently needed for understanding the working mechanisms and developing therapeutic agents. In this study, we characterized the previously reported F61, which was isolated from convalescent patients infected with prototype SARS-CoV-2, as a broadly neutralizing antibody against all VOCs including Omicron BA.1, BA.1.1, BA.2, BA.3 and BA.4 sublineages by utilizing antigen binding and cell infection assays. We also identified and characterized another broadly neutralizing antibody D2 with epitope distinct from that of F61. More importantly, we showed that a combination of F61 with D2 exhibited synergy in neutralization and protecting mice from SARS-CoV-2 Delta and Omicron BA.1 variants. Cryo-Electron Microscopy (Cryo-EM) structures of the spike-F61 and spike-D2 binary complexes revealed the distinct epitopes of F61 and D2 at atomic level and the structural basis for neutralization. Cryo-EM structure of the Omicron-spike-F61-D2 ternary complex provides further structural insights into the synergy between F61 and D2. These results collectively indicated F61 and F61-D2 cocktail as promising therapeutic antibodies for combating SARS-CoV-2 variants including diverse Omicron sublineages. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 801.1 KB | Display | ![]() |
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PDB format | ![]() | 642.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.3 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 124.2 KB | Display | |
Data in CIF | ![]() | 190.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 33434MC ![]() 7xmxC ![]() 7xmzC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Antibody , 4 types, 12 molecules LHDMIENJFOKG
#2: Antibody | Mass: 12993.491 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Antibody | Mass: 11472.622 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #4: Antibody | Mass: 13406.785 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #5: Antibody | Mass: 11468.719 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Protein / Sugars , 2 types, 34 molecules ABC

#1: Protein | Mass: 134628.844 Da / Num. of mol.: 3 / Mutation: F817P,A892P,A899P,A942P,K986P,V987P Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Production host: ![]() #6: Sugar | ChemComp-NAG / |
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-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: SARS-CoV-2 Omicron spike in complex with F61 and D2 Fab Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.2 |
Specimen | Conc.: 0.91 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 1200 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.04 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 670525 / Symmetry type: POINT |