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- EMDB-30331: The interface of H014 Fab binds to SARS-CoV-2 S -

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Basic information

Entry
Database: EMDB / ID: EMD-30331
TitleThe interface of H014 Fab binds to SARS-CoV-2 S
Map data
Sample
  • Complex: The interface of H014 Fab binds to SARS-CoV-2 S
    • Complex: H014 Fab
      • Protein or peptide: Light chain of H014 Fab
      • Protein or peptide: Heavy chain of H014 Fab
    • Complex: SARS-CoV-2 S
      • Protein or peptide: Spike protein S1
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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane ...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 / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / entry receptor-mediated virion attachment to host cell / 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 / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / virion membrane / membrane / identical protein binding / 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 speciesHomo sapiens (human) / Severe acute respiratory syndrome coronavirus 2
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsZhe L / Cao L / Deng Y / Sun Y / Wang N / Xie L / Rao Z / wang Y / Qin C / Wang X
CitationJournal: Science / Year: 2020
Title: Structural basis for neutralization of SARS-CoV-2 and SARS-CoV by a potent therapeutic antibody.
Authors: Zhe Lv / Yong-Qiang Deng / Qing Ye / Lei Cao / Chun-Yun Sun / Changfa Fan / Weijin Huang / Shihui Sun / Yao Sun / Ling Zhu / Qi Chen / Nan Wang / Jianhui Nie / Zhen Cui / Dandan Zhu / Neil ...Authors: Zhe Lv / Yong-Qiang Deng / Qing Ye / Lei Cao / Chun-Yun Sun / Changfa Fan / Weijin Huang / Shihui Sun / Yao Sun / Ling Zhu / Qi Chen / Nan Wang / Jianhui Nie / Zhen Cui / Dandan Zhu / Neil Shaw / Xiao-Feng Li / Qianqian Li / Liangzhi Xie / Youchun Wang / Zihe Rao / Cheng-Feng Qin / Xiangxi Wang /
Abstract: The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has resulted in an unprecedented public health crisis. There are no approved ...The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has resulted in an unprecedented public health crisis. There are no approved vaccines or therapeutics for treating COVID-19. Here we report a humanized monoclonal antibody, H014, that efficiently neutralizes SARS-CoV-2 and SARS-CoV pseudoviruses as well as authentic SARS-CoV-2 at nanomolar concentrations by engaging the spike (S) receptor binding domain (RBD). H014 administration reduced SARS-CoV-2 titers in infected lungs and prevented pulmonary pathology in a human angiotensin-converting enzyme 2 mouse model. Cryo-electron microscopy characterization of the SARS-CoV-2 S trimer in complex with the H014 Fab fragment unveiled a previously uncharacterized conformational epitope, which was only accessible when the RBD was in an open conformation. Biochemical, cellular, virological, and structural studies demonstrated that H014 prevents attachment of SARS-CoV-2 to its host cell receptors. Epitope analysis of available neutralizing antibodies against SARS-CoV and SARS-CoV-2 uncovered broad cross-protective epitopes. Our results highlight a key role for antibody-based therapeutic interventions in the treatment of COVID-19.
History
DepositionJun 8, 2020-
Header (metadata) releaseAug 12, 2020-
Map releaseAug 12, 2020-
UpdateMar 10, 2021-
Current statusMar 10, 2021Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 45
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 45
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7cah
  • Surface level: 45
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_30331.png

Downloads & links

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Map

FileDownload / File: emd_30331.map.gz / Format: CCP4 / Size: 30.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.04 Å
Density
Contour LevelBy AUTHOR: 35.0 / Movie #1: 45
Minimum - Maximum-79.08491 - 136.07462
Average (Standard dev.)0.21246646 (±3.7202334)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions200200200
Spacing200200200
CellA=B=C: 208.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.041.041.04
M x/y/z200200200
origin x/y/z0.0000.0000.000
length x/y/z208.000208.000208.000
α/β/γ90.00090.00090.000
start NX/NY/NZ-163-114-126
NX/NY/NZ210124170
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS200200200
D min/max/mean-79.085136.0750.212

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Supplemental data

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Sample components

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Entire : The interface of H014 Fab binds to SARS-CoV-2 S

EntireName: The interface of H014 Fab binds to SARS-CoV-2 S
Components
  • Complex: The interface of H014 Fab binds to SARS-CoV-2 S
    • Complex: H014 Fab
      • Protein or peptide: Light chain of H014 Fab
      • Protein or peptide: Heavy chain of H014 Fab
    • Complex: SARS-CoV-2 S
      • Protein or peptide: Spike protein S1

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Supramolecule #1: The interface of H014 Fab binds to SARS-CoV-2 S

SupramoleculeName: The interface of H014 Fab binds to SARS-CoV-2 S / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human) / Recombinant cell: HEK293

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Supramolecule #2: H014 Fab

SupramoleculeName: H014 Fab / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#2
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Recombinant expressionOrganism: Homo sapiens (human) / Recombinant cell: HEK293

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Supramolecule #3: SARS-CoV-2 S

SupramoleculeName: SARS-CoV-2 S / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #3

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Macromolecule #1: Light chain of H014 Fab

MacromoleculeName: Light chain of H014 Fab / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.724151 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
IVLTQSPFQS VSPKEKVTIT CRASQSISSN LHWYQQKPDQ SPKLLIKYAS QSISGIPSRF SGSGSGTDFT LTINSLEAED FGIYFCQQT NFWPYIFGQG TKLEIL

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Macromolecule #2: Heavy chain of H014 Fab

MacromoleculeName: Heavy chain of H014 Fab / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.694471 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: VQLVQSGAEV KKPGATVKIS CKVSGYSFSN YYIHWVKQAP GKSLEWIGYI DPFNGGTSDN LKFKGAATLT ADTSTDTAYM ELSSLRSED TAVYYCARSE YDPYYVMDYW GQGTTVTVSS ASTKGPSVFP LAPSSKSTSG GTAALGCLVK DYFPEPVTVS W NSGALTSG ...String:
VQLVQSGAEV KKPGATVKIS CKVSGYSFSN YYIHWVKQAP GKSLEWIGYI DPFNGGTSDN LKFKGAATLT ADTSTDTAYM ELSSLRSED TAVYYCARSE YDPYYVMDYW GQGTTVTVSS ASTKGPSVFP LAPSSKSTSG GTAALGCLVK DYFPEPVTVS W NSGALTSG VHTFPAVLQS SGLYSLSSVV TVPSSSLGTQ TYICNVNHKP SNTKVDKKVE PKSC

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Macromolecule #3: Spike protein S1

MacromoleculeName: Spike protein S1 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 21.772391 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: NLCPFGEVFN ATRFASVYAW NRKRISNCVA DYSVLYNSAS FSTFKCYGVS PTKLNDLCFT NVYADSFVIR GDEVRQIAPG QTGKIADYN YKLPDDFTGC VIAWNSNNLD SKVGGNYNYL YRLFRKSNLK PFERDISTEI YQAGSTPCNG VEGFNCYFPL Q SYGFQPTN ...String:
NLCPFGEVFN ATRFASVYAW NRKRISNCVA DYSVLYNSAS FSTFKCYGVS PTKLNDLCFT NVYADSFVIR GDEVRQIAPG QTGKIADYN YKLPDDFTGC VIAWNSNNLD SKVGGNYNYL YRLFRKSNLK PFERDISTEI YQAGSTPCNG VEGFNCYFPL Q SYGFQPTN GVGYQPYRVV VLSFELLHAP ATVCGP

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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

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 60.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6vxx

Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 844961

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