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- EMDB-39685: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C -

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Basic information

Entry
Database: EMDB / ID: EMD-39685
TitleSARS-CoV-2 Delta Spike in complex with Fab of JE-5C
Map data
Sample
  • Complex: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: Fab heavy chain of JE-5C
    • Protein or peptide: Fab light chain of JE-5C
KeywordsVIRAL 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 / symbiont-mediated suppression of host innate immune response / structural constituent of virion ...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 / symbiont-mediated suppression of host innate immune response / 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 / Attachment and Entry / membrane fusion / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / 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 / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, 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-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike glycoprotein, betacoronavirus / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, 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, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal
Similarity search - Domain/homology
Biological speciesSevere acute respiratory syndrome coronavirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.93 Å
AuthorsChen X / Wu Y-M
Funding support Taiwan, 1 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, Taiwan) Taiwan
CitationJournal: PLoS Pathog / Year: 2024
Title: The presence of broadly neutralizing anti-SARS-CoV-2 RBD antibodies elicited by primary series and booster dose of COVID-19 vaccine.
Authors: Xiaorui Chen / Arpita Mohapatra / Hong Thuy Vy Nguyen / Lisa Schimanski / Tiong Kit Tan / Pramila Rijal / Cheng-Pin Chen / Shu-Hsing Cheng / Wen-Hsin Lee / Yu-Chi Chou / Alain R Townsend / ...Authors: Xiaorui Chen / Arpita Mohapatra / Hong Thuy Vy Nguyen / Lisa Schimanski / Tiong Kit Tan / Pramila Rijal / Cheng-Pin Chen / Shu-Hsing Cheng / Wen-Hsin Lee / Yu-Chi Chou / Alain R Townsend / Che Ma / Kuan-Ying A Huang /
Abstract: Antibody-mediated immunity plays a key role in protection against SARS-CoV-2. We characterized B-cell-derived anti-SARS-CoV-2 RBD antibody repertoires from vaccinated and infected individuals and ...Antibody-mediated immunity plays a key role in protection against SARS-CoV-2. We characterized B-cell-derived anti-SARS-CoV-2 RBD antibody repertoires from vaccinated and infected individuals and elucidate the mechanism of action of broadly neutralizing antibodies and dissect antibodies at the epitope level. The breadth and clonality of anti-RBD B cell response varies among individuals. The majority of neutralizing antibody clones lose or exhibit reduced activities against Beta, Delta, and Omicron variants. Nevertheless, a portion of anti-RBD antibody clones that develops after a primary series or booster dose of COVID-19 vaccination exhibit broad neutralization against emerging Omicron BA.2, BA.4, BA.5, BQ.1.1, XBB.1.5 and XBB.1.16 variants. These broadly neutralizing antibodies share genetic features including a conserved usage of the IGHV3-53 and 3-9 genes and recognize three clustered epitopes of the RBD, including epitopes that partially overlap the classically defined set identified early in the pandemic. The Fab-RBD crystal and Fab-Spike complex structures corroborate the epitope grouping of antibodies and reveal the detailed binding mode of broadly neutralizing antibodies. Structure-guided mutagenesis improves binding and neutralization potency of antibody with Omicron variants via a single amino-substitution. Together, these results provide an immunological basis for partial protection against severe COVID-19 by the ancestral strain-based vaccine and indicate guidance for next generation monoclonal antibody development and vaccine design.
History
DepositionApr 6, 2024-
Header (metadata) releaseJun 5, 2024-
Map releaseJun 5, 2024-
UpdateJun 26, 2024-
Current statusJun 26, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_39685.png

Downloads & links

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Map

FileDownload / File: emd_39685.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.83 Å
Density
Contour LevelBy AUTHOR: 0.0034
Minimum - Maximum-0.034200698 - 0.052870743
Average (Standard dev.)0.000004610796 (±0.0013003425)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 318.72 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_39685_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_39685_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : SARS-CoV-2 Delta Spike in complex with Fab of JE-5C

EntireName: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C
Components
  • Complex: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: Fab heavy chain of JE-5C
    • Protein or peptide: Fab light chain of JE-5C

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Supramolecule #1: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C

SupramoleculeName: SARS-CoV-2 Delta Spike in complex with Fab of JE-5C / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Macromolecule #1: Spike glycoprotein

MacromoleculeName: Spike glycoprotein / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 139.421547 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKVKLLVLLC TFTATYAGTQ CVNLRTRTQL PPAYTNSFTR GVYYPDKVFR SSVLHSTQDL FLPFFSNVTW FHAIHVSGTN GTKRFDNPV LPFNDGVYFA STEKSNIIRG WIFGTTLDSK TQSLLIVNNA TNVVIKVCEF QFCNDPFLDV YYHKNNKSWM E SGVYSSAN ...String:
MKVKLLVLLC TFTATYAGTQ CVNLRTRTQL PPAYTNSFTR GVYYPDKVFR SSVLHSTQDL FLPFFSNVTW FHAIHVSGTN GTKRFDNPV LPFNDGVYFA STEKSNIIRG WIFGTTLDSK TQSLLIVNNA TNVVIKVCEF QFCNDPFLDV YYHKNNKSWM E SGVYSSAN NCTFEYVSQP FLMDLEGKQG NFKNLREFVF KNIDGYFKIY SKHTPINLVR DLPQGFSALE PLVDLPIGIN IT RFQTLLA LHRSYLTPGD SSSGWTAGAA AYYVGYLQPR TFLLKYNENG TITDAVDCAL DPLSETKCTL KSFTVEKGIY QTS NFRVQP TESIVRFPNI TNLCPFGEVF NATRFASVYA WNRKRISNCV ADYSVLYNSA SFSTFKCYGV SPTKLNDLCF TNVY ADSFV IRGDEVRQIA PGQTGKIADY NYKLPDDFTG CVIAWNSNNL DSKVGGNYNY RYRLFRKSNL KPFERDISTE IYQAG SKPC NGVEGFNCYF PLQSYGFQPT NGVGYQPYRV VVLSFELLHA PATVCGPKKS TNLVKNKCVN FNFNGLTGTG VLTESN KKF LPFQQFGRDI ADTTDAVRDP QTLEILDITP CSFGGVSVIT PGTNTSNQVA VLYQGVNCTE VPVAIHADQL TPTWRVY ST GSNVFQTRAG CLIGAEHVNN SYECDIPIGA GICASYQTQT NSRGSAGSVA SQSIIAYTMS LGAENSVAYS NNSIAIPT N FTISVTTEIL PVSMTKTSVD CTMYICGDST ECSNLLLQYG SFCTQLNRAL TGIAVEQDKN TQEVFAQVKQ IYKTPPIKD FGGFNFSQIL PDPSKPSKRS FIEDLLFNKV TLADAGFIKQ YGDCLGDIAA RDLICAQKFN GLTVLPPLLT DEMIAQYTSA LLAGTITSG WTFGAGAALQ IPFAMQMAYR FNGIGVTQNV LYENQKLIAN QFNSAIGKIQ DSLSSTASAL GKLQNVVNQN A QALNTLVK QLSSNFGAIS SVLNDILSRL DPPEAEVQID RLITGRLQSL QTYVTQQLIR AAEIRASANL AATKMSECVL GQ SKRVDFC GKGYHLMSFP QSAPHGVVFL HVTYVPAQEK NFTTAPAICH DGKAHFPREG VFVSNGTHWF VTQRNFYEPQ IIT TDNTFV SGNCDVVIGI VNNTVYDPLQ PELDSFKEEL DKYFKNHTSP DVDLGDISGI NASVVNIQKE IDRLNEVAKN LNES LIDLQ ELGKYEQDIR SLVPRGSPGS GYIPEAPRDG QAYVRKDGEW VLLSTFLGHH HHHH

UniProtKB: Spike glycoprotein

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Macromolecule #2: Fab heavy chain of JE-5C

MacromoleculeName: Fab heavy chain of JE-5C / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 12.748195 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString:
EVQLLESGGG LVQPGGSLRL SCAASGVTVT SNYMSWVRQA PGKGLEWVSV IYSGGSTYYA DSVKGRFTIS RHNSKNTLYL QMNSLRAED TAVYYCARDL REAGGMDVWG QGTTVTVSSA

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Macromolecule #3: Fab light chain of JE-5C

MacromoleculeName: Fab light chain of JE-5C / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.801987 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString:
DIVMTQSPSS LSASVGDRVT ITCQASQDIN NYLNWYQQKP GKAPKLLIYD ASNLETGVPS RFSGSGSGTD FTFTISSLQP EDIATYYCQ QFDNLPWTFG QGTKVEIR

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.75 mg/mL
BufferpH: 7.5 / Details: 20mM Tris-HCL, 150mM NaCl
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 5625 / Average electron dose: 1.1 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1417277
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8dm9

Final reconstructionNumber classes used: 1 / Resolution.type: BY AUTHOR / Resolution: 3.93 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 180312
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final 3D classificationNumber classes: 3 / Avg.num./class: 170000
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: RIGID BODY FIT
Output model

PDB-8yz5:
SARS-CoV-2 Delta Spike in complex with Fab of JE-5C

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