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Open data
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Basic information
Entry | Database: PDB / ID: 8y0y | |||||||||||||||
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Title | Cryo-EM structure of the 123-316 scDb/PT-RBD complex | |||||||||||||||
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![]() | IMMUNE SYSTEM / Cryo-EM / SARS-CoV2 / antibody / RBD | |||||||||||||||
Function / homology | ![]() 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 Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.86 Å | |||||||||||||||
![]() | Jia, G.W. / Tong, Z. / Tong, J.Y. / Su, Z.M. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Deciphering a reliable synergistic bispecific strategy of rescuing antibodies for SARS-CoV-2 escape variants, including BA.2.86, EG.5.1, and JN.1. Authors: Zhou Tong / Jianyu Tong / Wenwen Lei / Yufeng Xie / Yingzi Cui / Guowen Jia / Shihua Li / Zezhong Zhang / Zhimin Cheng / Xiao Xing / Haiyun Ma / Lan Deng / Rong Zhang / Xin Zhao / Kefang Liu ...Authors: Zhou Tong / Jianyu Tong / Wenwen Lei / Yufeng Xie / Yingzi Cui / Guowen Jia / Shihua Li / Zezhong Zhang / Zhimin Cheng / Xiao Xing / Haiyun Ma / Lan Deng / Rong Zhang / Xin Zhao / Kefang Liu / Qihui Wang / Jianxun Qi / Haomin Huang / Rui Song / Zhaoming Su / Guizhen Wu / Jing Lou / George Fu Gao / ![]() Abstract: The game between therapeutic monoclonal antibodies (mAbs) and continuously emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has favored the virus, as most therapeutic ...The game between therapeutic monoclonal antibodies (mAbs) and continuously emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants has favored the virus, as most therapeutic mAbs have been evaded. Addressing this challenge, we systematically explored a reproducible bispecific antibody (bsAb)-dependent synergistic effect in this study. It could effectively restore the neutralizing activity of the bsAb when any of its single mAbs is escaped by variants. This synergy is primarily attributed to the binding angle of receptor-binding domain (RBD)-5, facilitating inter-spike cross-linking and promoting cryptic epitope exposure that classical antibody cocktails cannot achieve. Furthermore, RBD-5 with RBD-2, RBD-6, and RBD-7, alongside RBD-8, also exhibit significantly enhanced effects. This study not only shifts the paradigm in understanding antibody interactions but paves the way for developing more effective therapeutic antibodies against rapidly mutating SARS-CoV-2, with Dia-19 already showing promise against emerging variants like BA.2.86, EG.5.1, and JN.1. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 161.9 KB | Display | ![]() |
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PDB format | ![]() | 115.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 34.6 KB | Display | |
Data in CIF | ![]() | 49.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 38823MC ![]() 8xseC ![]() 8xsfC ![]() 8xsiC ![]() 8xsjC ![]() 8xslC 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
#1: Antibody | Mass: 56931.738 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Protein | | Mass: 23513.389 Da / Num. of mol.: 1 / Fragment: Receptor binding domain (RBD) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Cell line (production host): HEK293F / Production host: ![]() #3: Sugar | ChemComp-NAG / | Has ligand of interest | Y | |
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-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: The 123-316 scDb/PT-RBD complex / Type: COMPLEX / Entity ID: #2 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 8 |
Specimen | 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: 4100 nm / Nominal defocus min: 300 nm |
Image recording | Electron dose: 53.1 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
CTF correction | Type: NONE | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 2.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 437204 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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