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- PDB-7lxy: SARS-CoV-2 S/S2M11/S2X333 Global Refinement -

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Basic information

Entry
Database: PDB / ID: 7lxy
TitleSARS-CoV-2 S/S2M11/S2X333 Global Refinement
Components
  • S2M11 Fab Heavy Chain variable region
  • S2M11 Fab Light Chain variable region
  • S2X333 Fab Heavy Chain variable region
  • S2X333 Fab Light Chain variable region
  • Spike glycoprotein
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / Antibody / VIRAL PROTEIN / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / 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 / viral translation / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / viral translation / 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 / Attachment and Entry / 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 / 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 / symbiont entry into host cell / 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
Spike glycoprotein, N-terminal domain / 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. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. ...Spike glycoprotein, N-terminal domain / 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. / 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 / Jelly Rolls / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / negative staining / cryo EM / Resolution: 2.2 Å
AuthorsMcCallum, M. / Veesler, D. / Seattle Structural Genomics Center for Infectious Disease (SSGCID)
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM120553 United States
CitationJournal: Cell / Year: 2021
Title: N-terminal domain antigenic mapping reveals a site of vulnerability for SARS-CoV-2.
Authors: Matthew McCallum / Anna De Marco / Florian A Lempp / M Alejandra Tortorici / Dora Pinto / Alexandra C Walls / Martina Beltramello / Alex Chen / Zhuoming Liu / Fabrizia Zatta / Samantha ...Authors: Matthew McCallum / Anna De Marco / Florian A Lempp / M Alejandra Tortorici / Dora Pinto / Alexandra C Walls / Martina Beltramello / Alex Chen / Zhuoming Liu / Fabrizia Zatta / Samantha Zepeda / Julia di Iulio / John E Bowen / Martin Montiel-Ruiz / Jiayi Zhou / Laura E Rosen / Siro Bianchi / Barbara Guarino / Chiara Silacci Fregni / Rana Abdelnabi / Shi-Yan Caroline Foo / Paul W Rothlauf / Louis-Marie Bloyet / Fabio Benigni / Elisabetta Cameroni / Johan Neyts / Agostino Riva / Gyorgy Snell / Amalio Telenti / Sean P J Whelan / Herbert W Virgin / Davide Corti / Matteo Samuele Pizzuto / David Veesler /
Abstract: The SARS-CoV-2 spike (S) glycoprotein contains an immunodominant receptor-binding domain (RBD) targeted by most neutralizing antibodies (Abs) in COVID-19 patient plasma. Little is known about ...The SARS-CoV-2 spike (S) glycoprotein contains an immunodominant receptor-binding domain (RBD) targeted by most neutralizing antibodies (Abs) in COVID-19 patient plasma. Little is known about neutralizing Abs binding to epitopes outside the RBD and their contribution to protection. Here, we describe 41 human monoclonal Abs (mAbs) derived from memory B cells, which recognize the SARS-CoV-2 S N-terminal domain (NTD) and show that a subset of them neutralize SARS-CoV-2 ultrapotently. We define an antigenic map of the SARS-CoV-2 NTD and identify a supersite (designated site i) recognized by all known NTD-specific neutralizing mAbs. These mAbs inhibit cell-to-cell fusion, activate effector functions, and protect Syrian hamsters from SARS-CoV-2 challenge, albeit selecting escape mutants in some animals. Indeed, several SARS-CoV-2 variants, including the B.1.1.7, B.1.351, and P.1 lineages, harbor frequent mutations within the NTD supersite, suggesting ongoing selective pressure and the importance of NTD-specific neutralizing mAbs for protective immunity and vaccine design.
History
DepositionMar 5, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 14, 2021Provider: repository / Type: Initial release
Revision 1.0Apr 14, 2021Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
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Revision 1.0Apr 14, 2021Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
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Revision 1.0Apr 14, 2021Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Apr 14, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
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Revision 1.0Apr 14, 2021Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Apr 14, 2021Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1May 12, 2021Group: Database references / Category: citation / Item: _citation.journal_volume / _citation.page_first
Revision 1.2Oct 16, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.3May 21, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 21, 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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Assembly

Deposited unit
A: Spike glycoprotein
D: S2M11 Fab Light Chain variable region
E: S2M11 Fab Heavy Chain variable region
H: S2X333 Fab Heavy Chain variable region
L: S2X333 Fab Light Chain variable region
B: Spike glycoprotein
C: S2M11 Fab Light Chain variable region
F: S2M11 Fab Heavy Chain variable region
G: S2X333 Fab Heavy Chain variable region
I: S2X333 Fab Light Chain variable region
J: Spike glycoprotein
K: S2M11 Fab Light Chain variable region
M: S2M11 Fab Heavy Chain variable region
N: S2X333 Fab Heavy Chain variable region
O: S2X333 Fab Light Chain variable region
hetero molecules


Theoretical massNumber of molelcules
Total (without water)588,98869
Polymers574,28915
Non-polymers14,69954
Water13,133729
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: immunoprecipitation
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Antibody , 4 types, 12 molecules DCKEFMHGNLIO

#2: Antibody S2M11 Fab Light Chain variable region


Mass: 11208.458 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#3: Antibody S2M11 Fab Heavy Chain variable region


Mass: 13651.220 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#4: Antibody S2X333 Fab Heavy Chain variable region


Mass: 13391.930 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#5: Antibody S2X333 Fab Light Chain variable region


Mass: 10750.675 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)

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Protein / Non-polymers , 2 types, 732 molecules ABJ

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


Mass: 142427.438 Da / Num. of mol.: 3
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
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 729 / Source method: isolated from a natural source / Formula: H2O

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Sugars , 3 types, 54 molecules

#6: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 732.682 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,4,3/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1221m-1a_1-5]/1-1-2-3/a4-b1_a6-d1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}[(6+1)][a-L-Fucp]{}}LINUCSPDB-CARE
#7: 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.: 6
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
#8: 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.: 45 / 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: SARS-CoV-2 S hexapro bound to S2X333 Fab / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
11Homo sapiens (human)9606
21Severe acute respiratory syndrome coronavirus 22697049
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
Buffer component
IDConc.NameBuffer-ID
120 mMTris-HCl1
2150 mMSodium Chloride1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: YES / Vitrification applied: YES
EM stainingType: NONE / Details: f / Material: Ethane
VitrificationCryogen name: ETHANE

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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
Image recordingElectron dose: 60 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.18.1_3865: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 261953 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.01133969
ELECTRON MICROSCOPYf_angle_d1.21446383
ELECTRON MICROSCOPYf_dihedral_angle_d12.211574
ELECTRON MICROSCOPYf_chiral_restr0.075529
ELECTRON MICROSCOPYf_plane_restr0.0065976

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