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- PDB-8vpf: Structure of SARS-CoV spike in complex with CoV1-65 Fab (NTD-bound) -

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Basic information

Entry
Database: PDB / ID: 8vpf
TitleStructure of SARS-CoV spike in complex with CoV1-65 Fab (NTD-bound)
Components
  • (CoV1-65 antibody ...) x 2
  • Spike glycoprotein
KeywordsVIRAL PROTEIN / SARS-CoV / Spike / Monoclonal antibody / Complex / NTD
Function / homology
Function and homology information


Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Attachment and Entry / SARS-CoV-1 activates/modulates innate immune responses / symbiont-mediated-mediated suppression of host tetherin activity / membrane fusion / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell ...Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / Attachment and Entry / SARS-CoV-1 activates/modulates innate immune responses / symbiont-mediated-mediated suppression of host tetherin activity / membrane fusion / 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 / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / host cell plasma membrane / virion membrane / identical protein binding / membrane
Similarity search - Function
Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / 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. / 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 S1, N-terminal domain, betacoronavirus-like ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / 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. / 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 S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / 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
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsBangaru, S. / Ward, A.B.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)P01 AI144462 United States
Bill & Melinda Gates FoundationOPP1170236 United States
CitationJournal: J Clin Invest / Year: 2024
Title: Structural characterization of human monoclonal antibodies targeting uncommon antigenic sites on spike glycoprotein of SARS-CoV.
Authors: Naveenchandra Suryadevara / Nurgun Kose / Sandhya Bangaru / Elad Binshtein / Jennifer Munt / David R Martinez / Alexandra Schäfer / Luke Myers / Trevor D Scobey / Robert H Carnahan / Andrew ...Authors: Naveenchandra Suryadevara / Nurgun Kose / Sandhya Bangaru / Elad Binshtein / Jennifer Munt / David R Martinez / Alexandra Schäfer / Luke Myers / Trevor D Scobey / Robert H Carnahan / Andrew B Ward / Ralph S Baric / James E Crowe /
Abstract: The function of the spike protein N terminal domain (NTD) in coronavirus (CoV) infections is poorly understood. However, some rare antibodies that target the SARS-CoV-2 NTD potently neutralize the ...The function of the spike protein N terminal domain (NTD) in coronavirus (CoV) infections is poorly understood. However, some rare antibodies that target the SARS-CoV-2 NTD potently neutralize the virus. This finding suggests the NTD may contribute, in part, to protective immunity. Pansarbecovirus antibodies are desirable for broad protection, but the NTD region of SARS-CoV and SARS-CoV-2 exhibit a high level of sequence divergence; therefore, cross-reactive NTD-specific antibodies are unexpected, and there is no structure of a SARS-CoV NTD-specific antibody in complex with NTD. Here, we report a monoclonal antibody COV1-65, encoded by the IGHV1-69 gene, that recognizes the NTD of SARS-CoV S protein. A prophylaxis study showed the mAb COV1-65 prevented disease when administered before SARS-CoV challenge of BALB/c mice, an effect that requires intact fragment crystallizable region (Fc) effector functions for optimal protection in vivo. The footprint on the S protein of COV1-65 is near to functional components of the S2 fusion machinery, and the selection of COV1-65 escape mutant viruses identified critical residues Y886H and Q974H, which likely affect the epitope through allosteric effects. Structural features of the mAb COV1-65-SARS-CoV antigen interaction suggest critical antigenic determinants that should be considered in the rational design of sarbecovirus vaccine candidates.
History
DepositionJan 16, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 19, 2025Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: Mask / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Mar 19, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Jun 4, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update
Revision 1.1Jun 4, 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 / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Spike glycoprotein
M: CoV1-65 antibody heavy chain
N: CoV1-65 antibody light chain
B: Spike glycoprotein
D: CoV1-65 antibody heavy chain
F: CoV1-65 antibody light chain
C: Spike glycoprotein
E: CoV1-65 antibody heavy chain
G: CoV1-65 antibody light chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)566,79736
Polymers557,8999
Non-polymers8,89727
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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Protein , 1 types, 3 molecules ABC

#1: Protein Spike glycoprotein / S glycoprotein / E2 / Peplomer protein


Mass: 138740.688 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus
Gene: S, 2 / Cell line (production host): 293F / Production host: Homo sapiens (human) / References: UniProt: P59594

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Antibody , 2 types, 6 molecules MDENFG

#2: Antibody CoV1-65 antibody heavy chain


Mass: 24347.430 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): 293F / Production host: Homo sapiens (human)
#3: Antibody CoV1-65 antibody light chain


Mass: 22878.279 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): 293F / Production host: Homo sapiens (human)

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Sugars , 3 types, 27 molecules

#4: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#5: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}LINUCSPDB-CARE
#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.: 15 / 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

ComponentName: Structure of SARS-CoV spike in complex with CoV1-65 Fab
Type: COMPLEX / Entity ID: #1-#3 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Source (natural)Organism: Human coronavirus OC43
Source (recombinant)Organism: Homo sapiens (human) / Cell: 293F cells
Buffer solutionpH: 7.4 / Details: 1X TBS
Buffer component
IDConc.NameFormulaBuffer-ID
150 mMTrisTris1
2150 mMSodium ChlorideNaCl1
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 29000 X / Nominal defocus max: 1600 nm / Nominal defocus min: 600 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 2589
Image scansMovie frames/image: 30

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Processing

EM software
IDNameCategory
1cryoSPARCparticle selection
2Leginonimage acquisition
4GctfCTF correction
7Cootmodel fitting
9cryoSPARCinitial Euler assignment
10cryoSPARCfinal Euler assignment
11cryoSPARCclassification
12cryoSPARC3D reconstruction
13Rosettamodel refinement
14PHENIXmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 315452
SymmetryPoint symmetry: C3 (3 fold cyclic)
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 190300 / Symmetry type: POINT
Atomic model buildingPDB-ID: 6crx

6crx


Accession code: 6crx / Source name: PDB / Type: experimental model

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