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- PDB-7u0x: SARS-Cov2 S protein structure in complex with neutralizing monocl... -

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Basic information

Entry
Database: PDB / ID: 7u0x
TitleSARS-Cov2 S protein structure in complex with neutralizing monoclonal antibody 002-13
Components
  • Spike glycoprotein
  • mAb 002-13 Light chain
  • mAb 002-13 heavy chain
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / SARS-Cov2 6P spike protein / immune complex / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


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 / symbiont-mediated suppression of host innate immune response / 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
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, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / 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 / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus ...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, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / 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 / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike glycoprotein S1, receptor binding / 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 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.82 Å
AuthorsPatel, A. / Ortlund, E.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)3U54EB027690-04S United States
CitationJournal: Structure / Year: 2023
Title: Molecular basis of SARS-CoV-2 Omicron variant evasion from shared neutralizing antibody response.
Authors: Anamika Patel / Sanjeev Kumar / Lilin Lai / Chennareddy Chakravarthy / Rajesh Valanparambil / Elluri Seetharami Reddy / Kamalvishnu Gottimukkala / Prashant Bajpai / Dinesh Ravindra Raju / ...Authors: Anamika Patel / Sanjeev Kumar / Lilin Lai / Chennareddy Chakravarthy / Rajesh Valanparambil / Elluri Seetharami Reddy / Kamalvishnu Gottimukkala / Prashant Bajpai / Dinesh Ravindra Raju / Venkata Viswanadh Edara / Meredith E Davis-Gardner / Susanne Linderman / Kritika Dixit / Pragati Sharma / Grace Mantus / Narayanaiah Cheedarla / Hans P Verkerke / Filipp Frank / Andrew S Neish / John D Roback / Carl W Davis / Jens Wrammert / Rafi Ahmed / Mehul S Suthar / Amit Sharma / Kaja Murali-Krishna / Anmol Chandele / Eric A Ortlund /
Abstract: Understanding the molecular features of neutralizing epitopes is important for developing vaccines/therapeutics against emerging SARS-CoV-2 variants. We describe three monoclonal antibodies (mAbs) ...Understanding the molecular features of neutralizing epitopes is important for developing vaccines/therapeutics against emerging SARS-CoV-2 variants. We describe three monoclonal antibodies (mAbs) generated from COVID-19 recovered individuals during the first wave of the pandemic in India. These mAbs had publicly shared near germline gene usage and potently neutralized Alpha and Delta, poorly neutralized Beta, and failed to neutralize Omicron BA.1 SARS-CoV-2 variants. Structural analysis of these mAbs in complex with trimeric spike protein showed that all three mAbs bivalently bind spike with two mAbs targeting class 1 and one targeting a class 4 receptor binding domain epitope. The immunogenetic makeup, structure, and function of these mAbs revealed specific molecular interactions associated with the potent multi-variant binding/neutralization efficacy. This knowledge shows how mutational combinations can affect the binding or neutralization of an antibody, which in turn relates to the efficacy of immune responses to emerging SARS-CoV-2 escape variants.
History
DepositionFeb 19, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 1, 2023Provider: repository / Type: Initial release
Revision 1.1Sep 13, 2023Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Spike glycoprotein
B: Spike glycoprotein
C: Spike glycoprotein
F: mAb 002-13 heavy chain
G: mAb 002-13 Light chain
H: mAb 002-13 heavy chain
L: mAb 002-13 Light chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)560,85551
Polymers548,0747
Non-polymers12,78144
Water00
1


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

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Components

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


Mass: 133781.312 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 / Cell line (production host): freestyle 293F / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#2: Antibody mAb 002-13 heavy chain


Mass: 50205.441 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): expi 293 / Production host: Homo sapiens (human)
#3: Antibody mAb 002-13 Light chain


Mass: 23159.354 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): expi 293 / Production host: Homo sapiens (human)
#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.: 15
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: 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.: 29 / Source method: obtained synthetically / Formula: C8H15NO6 / Feature type: SUBJECT OF INVESTIGATION
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
Has ligand of interestY

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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
1Cov2 Spike timer in complex with monoclonal antibodyCOMPLEX#1-#30RECOMBINANT
2Spike glycoproteinCOMPLEX#11RECOMBINANT
3mAb 002-13 heavy chain, mAb 002-13 Light chainCOMPLEX#2-#31RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Severe acute respiratory syndrome coronavirus 22697049
23Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-IDCell
12Homo sapiens (human)9606293F
23Homo sapiens (human)9606
Buffer solutionpH: 7.4 / Details: PBS buffer
Buffer component
IDConc.NameFormulaBuffer-ID
1137 mMSodium ChlorideNaCl1
22.7 mMpotassium chlorideKCl1
38 mMdisodium hydrogen phosphateNa2HPO41
42 mMpotassium di-hydrogen phosphateKH2PO41
SpecimenConc.: 0.7 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: C-flat-1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 297 K / Details: 20 second wait time and 3 seconds blot time

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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: 81000 X / Nominal defocus max: 2700 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 63.81 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 7402
EM imaging opticsEnergyfilter slit width: 30 eV

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Processing

SoftwareName: PHENIX / Version: 1.20rc1_4389: / Classification: refinement
EM software
IDNameVersionCategory
4cryoSPARC3.2.0CTF correction
7UCSF ChimeraXmodel fitting
9PHENIXmodel refinement
10cryoSPARC3.2.0initial Euler assignment
11cryoSPARC3.2.0final Euler assignment
12cryoSPARC3.2.0classification
13cryoSPARC3.2.03D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 3518052
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.82 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 181636 / Num. of class averages: 1 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL / Target criteria: correlation coefficient
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00333846
ELECTRON MICROSCOPYf_angle_d0.52946096
ELECTRON MICROSCOPYf_dihedral_angle_d4.5134828
ELECTRON MICROSCOPYf_chiral_restr0.0435373
ELECTRON MICROSCOPYf_plane_restr0.0045898

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