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Open data
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Basic information
Entry | Database: PDB / ID: 7yeg | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | SARS-CoV-2 Spike (6P) in complex with 3 R1-32 Fabs and 3 ACE2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | VIRAL PROTEIN/IMMUNE SYSTEM / ACE2 / VIRAL PROTEIN-IMMUNE SYSTEM COMPLEX | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction ...positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction / peptidyl-dipeptidase activity / maternal process involved in female pregnancy / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / negative regulation of signaling receptor activity / receptor-mediated endocytosis of virus by host cell / carboxypeptidase activity / Attachment and Entry / viral life cycle / positive regulation of cardiac muscle contraction / regulation of cytokine production / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / regulation of transmembrane transporter activity / brush border membrane / negative regulation of ERK1 and ERK2 cascade / cilium / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / 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 / Potential therapeutics for SARS / 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 / apical plasma membrane / receptor ligand activity / membrane raft / endocytosis involved in viral entry into host cell / endoplasmic reticulum lumen / symbiont 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 / cell surface / extracellular space / extracellular exosome / zinc ion binding / extracellular region / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.73 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Liu, B. / Gao, X. / Li, Z. / Chen, X. / He, J. / Chen, L. / Xiong, X. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: SARS-CoV-2 Delta and Omicron variants evade population antibody response by mutations in a single spike epitope. Authors: Ping He / Banghui Liu / Xijie Gao / Qihong Yan / Rongjuan Pei / Jing Sun / Qiuluan Chen / Ruitian Hou / Zimu Li / Yanjun Zhang / Jincun Zhao / Hao Sun / Bo Feng / Qian Wang / Haisu Yi / ...Authors: Ping He / Banghui Liu / Xijie Gao / Qihong Yan / Rongjuan Pei / Jing Sun / Qiuluan Chen / Ruitian Hou / Zimu Li / Yanjun Zhang / Jincun Zhao / Hao Sun / Bo Feng / Qian Wang / Haisu Yi / Peiyu Hu / Pingchao Li / Yudi Zhang / Zhilong Chen / Xuefeng Niu / Xiaolin Zhong / Liang Jin / Xiaofeng Liu / Kun Qu / Katarzyna A Ciazynska / Andrew P Carter / John A G Briggs / Jizheng Chen / Jinsong Liu / Xinwen Chen / Jun He / Ling Chen / Xiaoli Xiong / ![]() ![]() ![]() ![]() Abstract: Population antibody response is thought to be important in selection of virus variants. We report that SARS-CoV-2 infection elicits a population immune response that is mediated by a lineage of VH1- ...Population antibody response is thought to be important in selection of virus variants. We report that SARS-CoV-2 infection elicits a population immune response that is mediated by a lineage of VH1-69 germline antibodies. A representative antibody R1-32 from this lineage was isolated. By cryo-EM, we show that it targets a semi-cryptic epitope in the spike receptor-binding domain. Binding to this non-ACE2 competing epitope results in spike destruction, thereby inhibiting virus entry. On the basis of epitope location, neutralization mechanism and analysis of antibody binding to spike variants, we propose that recurrent substitutions at 452 and 490 are associated with immune evasion of the identified population antibody response. These substitutions, including L452R (present in the Delta variant), disrupt interactions mediated by the VH1-69-specific hydrophobic HCDR2 to impair antibody-antigen association, enabling variants to escape. The first Omicron variants were sensitive to antibody R1-32 but subvariants that harbour L452R quickly emerged and spread. Our results provide insights into how SARS-CoV-2 variants emerge and evade host immune responses. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.1 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 2.3 MB | Display | ![]() |
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Full document | ![]() | 2.3 MB | Display | |
Data in XML | ![]() | 165.7 KB | Display | |
Data in CIF | ![]() | 250.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 33772MC ![]() 7ydiC ![]() 7ydyC ![]() 7ye5C ![]() 7ye9C C: citing same article ( M: map data used to model this data |
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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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1 |
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Components
-Protein , 2 types, 6 molecules ABCEJM
#1: Protein | Mass: 133781.312 Da / Num. of mol.: 3 Mutation: R682G, R682S, R685S, F817P, A892P, A899P, A942P, K986P, V987P Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: S, 2 / Cell line (production host): HEK293 / Production host: ![]() #2: Protein | Mass: 69153.664 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q9BYF1, angiotensin-converting enzyme 2, Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases |
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-Antibody , 2 types, 6 molecules HGNLIO
#3: Antibody | Mass: 23840.717 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #4: Antibody | Mass: 22382.643 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Sugars , 2 types, 42 molecules 
#5: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #6: Sugar | ChemComp-NAG / |
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-Non-polymers , 1 types, 3 molecules 
#7: Chemical |
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-Details
Has ligand of interest | Y |
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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
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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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: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 45000 X / Nominal defocus max: 2500 nm / Nominal defocus min: 800 nm |
Specimen holder | Cryogen: NITROGEN |
Image recording | Average exposure time: 1.6 sec. / Electron dose: 63 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of real images: 6989 |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 619803 | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.73 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 203698 / Symmetry type: POINT |