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- PDB-9lae: Locally refined region of SARS-CoV-2 spike in complex with antibo... -

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Basic information

Entry
Database: PDB / ID: 9lae
TitleLocally refined region of SARS-CoV-2 spike in complex with antibodies 9G11 and 3E2.
Components
  • (Heavy chain of ...) x 2
  • (Light chain of ...) x 2
  • Spike protein S1
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / SARS-CoV-2 / RBD / Fab / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / Attachment and Entry / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / 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 / endocytosis involved in viral entry into host cell / receptor ligand activity / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / virion attachment to host cell / host cell plasma membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / identical protein binding / membrane / plasma membrane
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.46 Å
AuthorsJiang, Y. / Sun, H. / Zheng, Q. / Li, S.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Emerg Microbes Infect / Year: 2024
Title: Structural insight into broadening SARS-CoV-2 neutralization by an antibody cocktail harbouring both NTD and RBD potent antibodies.
Authors: Wenling Jiang / Yanan Jiang / Hui Sun / Tingting Deng / Kunyu Yu / Qianjiao Fang / Huimin Ge / Miaoling Lan / Yanling Lin / Zhongyue Fang / Yali Zhang / Lizhi Zhou / Tingting Li / Hai Yu / ...Authors: Wenling Jiang / Yanan Jiang / Hui Sun / Tingting Deng / Kunyu Yu / Qianjiao Fang / Huimin Ge / Miaoling Lan / Yanling Lin / Zhongyue Fang / Yali Zhang / Lizhi Zhou / Tingting Li / Hai Yu / Qingbing Zheng / Shaowei Li / Ningshao Xia / Ying Gu /
Abstract: The continual emergence of highly pathogenic novel coronaviruses and their variants has underscored the importance of neutralizing monoclonal antibodies (mAbs) as a pivotal therapeutic approach. In ...The continual emergence of highly pathogenic novel coronaviruses and their variants has underscored the importance of neutralizing monoclonal antibodies (mAbs) as a pivotal therapeutic approach. In the present study, we report the specific neutralizing antibodies 13H7 and 9G11, which target the N-terminal domain (NTD) and receptor-binding domain (RBD) of the SARS-CoV-2, respectively. The comparative analysis observed that 13H7 not only neutralizes early variants of concern (VOCs) but also exhibits neutralizing activity against the Omicron sublineage, including BA.4, BA.5, BQ.1, and BQ.1.1. 9G11, as an RBD antibody, also demonstrated remarkable neutralizing efficacy. A cocktail antibody combining 13H7 and 9G11 with the previously reported 3E2 broaden the neutralization spectrum against new variants of the SARS-CoV-2. We elucidated the cryo-EM structure of the complex, clarifying the mechanism of action of the cocktail antibody combination. Additionally, we also emphasized the molecular mechanism between 13H7 and SARS-CoV-2 NTD, revealing the impact of Y144 and H146 residue deletions and mutations on the neutralizing efficacy of 13H7. Taken together, our findings not only offer novel insights into the combination therapy of NTD and RBD neutralizing mAbs but also lay a theoretical foundation for the development of vaccines targeting NTD antibodies, thus providing valuable understanding of alleviating the emergence of SARS-CoV-2 variants.
History
DepositionJan 2, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Feb 12, 2025Provider: repository / Type: Initial release
Revision 1.0Feb 12, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
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Revision 1.1Feb 19, 2025Group: Data collection / Source and taxonomy
Category: em_admin / em_entity_assembly_naturalsource / entity_src_nat
Item: _em_admin.last_update / _em_entity_assembly_naturalsource.ncbi_tax_id ..._em_admin.last_update / _em_entity_assembly_naturalsource.ncbi_tax_id / _em_entity_assembly_naturalsource.organism / _entity_src_nat.pdbx_ncbi_taxonomy_id / _entity_src_nat.pdbx_organism_scientific
Revision 1.2Jul 16, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1Jul 16, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
G: Spike protein S1
L: Light chain of 3E2
H: Heavy chain of 3E2
B: Light chain of 9G11
A: Heavy chain of 9G11
hetero molecules


Theoretical massNumber of molelcules
Total (without water)74,5426
Polymers74,3215
Non-polymers2211
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Antibody , 4 types, 4 molecules LHBA

#2: Antibody Light chain of 3E2


Mass: 11203.357 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse)
#3: Antibody Heavy chain of 3E2


Mass: 13105.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse)
#4: Antibody Light chain of 9G11


Mass: 11809.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse)
#5: Antibody Heavy chain of 9G11


Mass: 13080.461 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mus musculus (house mouse)

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Protein / Sugars , 2 types, 2 molecules G

#1: Protein Spike protein S1


Mass: 25122.336 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Gene: S, 2 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#6: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Details

Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1SARS-CoV-2 spike in complex with antibodies 9G11 and 3E2COMPLEX#1-#50MULTIPLE SOURCES
2The Fab of 3E2COMPLEX#2-#31NATURAL
3SARS-CoV-2 spikeCOMPLEX#11RECOMBINANT
4The Fab of 9G11COMPLEX#4-#51NATURAL
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
13Severe acute respiratory syndrome coronavirus 22697049
22Mus musculus (house mouse)10090
34Mus musculus (house mouse)10090
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Tecnai F30 / Image courtesy: FEI Company
MicroscopyModel: FEI TECNAI F30
Electron gunElectron source: OTHER / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 5416 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.46 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 307127 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0055128
ELECTRON MICROSCOPYf_angle_d0.6146966
ELECTRON MICROSCOPYf_dihedral_angle_d5.8522975
ELECTRON MICROSCOPYf_chiral_restr0.047750
ELECTRON MICROSCOPYf_plane_restr0.004890

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