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- EMDB-23499: Cryo-EM structure of SARS-CoV-2 spike in complex with neutralizin... -

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Basic information

Entry
Database: EMDB / ID: EMD-23499
TitleCryo-EM structure of SARS-CoV-2 spike in complex with neutralizing antibody A23-58.1 that targets the receptor-binding domain
Map data
Sample
  • Complex: SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1
    • Protein or peptide: antibody A23-58.1 heavy chain
    • Protein or peptide: antibody A23-58.1 light chain
    • Protein or peptide: SARS-CoV-2 spike glycoprotein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
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 / membrane fusion / receptor-mediated endocytosis of virus by host cell / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.54 Å
AuthorsZhou T / Tsybovsky T
CitationJournal: Science / Year: 2021
Title: Ultrapotent antibodies against diverse and highly transmissible SARS-CoV-2 variants.
Authors: Lingshu Wang / Tongqing Zhou / Yi Zhang / Eun Sung Yang / Chaim A Schramm / Wei Shi / Amarendra Pegu / Olamide K Oloniniyi / Amy R Henry / Samuel Darko / Sandeep R Narpala / Christian ...Authors: Lingshu Wang / Tongqing Zhou / Yi Zhang / Eun Sung Yang / Chaim A Schramm / Wei Shi / Amarendra Pegu / Olamide K Oloniniyi / Amy R Henry / Samuel Darko / Sandeep R Narpala / Christian Hatcher / David R Martinez / Yaroslav Tsybovsky / Emily Phung / Olubukola M Abiona / Avan Antia / Evan M Cale / Lauren A Chang / Misook Choe / Kizzmekia S Corbett / Rachel L Davis / Anthony T DiPiazza / Ingelise J Gordon / Sabrina Helmold Hait / Tandile Hermanus / Prudence Kgagudi / Farida Laboune / Kwanyee Leung / Tracy Liu / Rosemarie D Mason / Alexandra F Nazzari / Laura Novik / Sarah O'Connell / Sijy O'Dell / Adam S Olia / Stephen D Schmidt / Tyler Stephens / Christopher D Stringham / Chloe Adrienna Talana / I-Ting Teng / Danielle A Wagner / Alicia T Widge / Baoshan Zhang / Mario Roederer / Julie E Ledgerwood / Tracy J Ruckwardt / Martin R Gaudinski / Penny L Moore / Nicole A Doria-Rose / Ralph S Baric / Barney S Graham / Adrian B McDermott / Daniel C Douek / Peter D Kwong / John R Mascola / Nancy J Sullivan / John Misasi /
Abstract: The emergence of highly transmissible SARS-CoV-2 variants of concern (VOCs) that are resistant to therapeutic antibodies highlights the need for continuing discovery of broadly reactive antibodies. ...The emergence of highly transmissible SARS-CoV-2 variants of concern (VOCs) that are resistant to therapeutic antibodies highlights the need for continuing discovery of broadly reactive antibodies. We identified four receptor binding domain-targeting antibodies from three early-outbreak convalescent donors with potent neutralizing activity against 23 variants, including the B.1.1.7, B.1.351, P.1, B.1.429, B.1.526, and B.1.617 VOCs. Two antibodies are ultrapotent, with subnanomolar neutralization titers [half-maximal inhibitory concentration (IC) 0.3 to 11.1 nanograms per milliliter; IC 1.5 to 34.5 nanograms per milliliter). We define the structural and functional determinants of binding for all four VOC-targeting antibodies and show that combinations of two antibodies decrease the in vitro generation of escape mutants, suggesting their potential in mitigating resistance development.
History
DepositionFeb 17, 2021-
Header (metadata) releaseJul 14, 2021-
Map releaseJul 14, 2021-
UpdateAug 25, 2021-
Current statusAug 25, 2021Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0683
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.0683
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7lrt
  • Surface level: 0.0683
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_23499.png

Downloads & links

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Map

FileDownload / File: emd_23499.map.gz / Format: CCP4 / Size: 512 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
0.86 Å/pix.
x 512 pix.
= 437.76 Å		0.86 Å/pix.
x 512 pix.
= 437.76 Å		0.86 Å/pix.
x 512 pix.
= 437.76 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.855 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0683 / Movie #1: 0.0683
Minimum - Maximum-0.1749056 - 0.49759173
Average (Standard dev.)4.3656706e-05 (±0.012176695)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions512512512
Spacing512512512
CellA=B=C: 437.76 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.8550.8550.855
M x/y/z512512512
origin x/y/z0.0000.0000.000
length x/y/z437.760437.760437.760
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ300300300
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS512512512
D min/max/mean-0.1750.4980.000

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Supplemental data

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Mask #1

Fileemd_23499_msk_1.map
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Additional map: #1

Fileemd_23499_additional_1.map
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Half map: #1

Fileemd_23499_half_map_1.map
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Half map: #2

Fileemd_23499_half_map_2.map
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Sample components

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Entire : SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1

EntireName: SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1
Components
  • Complex: SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1
    • Protein or peptide: antibody A23-58.1 heavy chain
    • Protein or peptide: antibody A23-58.1 light chain
    • Protein or peptide: SARS-CoV-2 spike glycoprotein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1

SupramoleculeName: SARS-CoV-2 spike in complex with neutralizing antibody A789-58.1
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Details: The complex was prepared by mixing SARS-CoV-2 spike protein and Fab fragment of antibody A789-58.1 at a molar ratio of 1:3.6.
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 539.951 KDa

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Macromolecule #1: antibody A23-58.1 heavy chain

MacromoleculeName: antibody A23-58.1 heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.363426 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: QMQLVQSGPE VKKPGTSVKV SCKASGFTFT SSAVQWVRQA RGQRLEWIGW IVVGSGNTNY AQKFQERVTI TRDMSTSTAY MELSSLRSE DTAVYYCAAP NCSNVVCYDG FDIWGQGTMV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA ...String:
QMQLVQSGPE VKKPGTSVKV SCKASGFTFT SSAVQWVRQA RGQRLEWIGW IVVGSGNTNY AQKFQERVTI TRDMSTSTAY MELSSLRSE DTAVYYCAAP NCSNVVCYDG FDIWGQGTMV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA LTSGVHTFPA VLQSSGLYSL SSVVTVPSSS LGTQTYICNV NHKPSNTKVD KKVEPKSCDK

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Macromolecule #2: antibody A23-58.1 light chain

MacromoleculeName: antibody A23-58.1 light chain / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.475006 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK PGQAPRLLIY SASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYFC QQYGTSPWTF GQGTKVEIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD ...String:
EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK PGQAPRLLIY SASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYFC QQYGTSPWTF GQGTKVEIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD SKDSTYSLSS TLTLSKADYE KHKVYACEVT HQGLSSPVTK SFNRGEC

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Macromolecule #3: SARS-CoV-2 spike glycoprotein

MacromoleculeName: SARS-CoV-2 spike glycoprotein / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2
Molecular weightTheoretical: 132.334469 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: QCVNLTTRTQ LPPAYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYFA STEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLG VYYHKNNKSW MESEFRVYSS ANNCTFEYVS Q PFLMDLEG ...String:
QCVNLTTRTQ LPPAYTNSFT RGVYYPDKVF RSSVLHSTQD LFLPFFSNVT WFHAIHVSGT NGTKRFDNPV LPFNDGVYFA STEKSNIIR GWIFGTTLDS KTQSLLIVNN ATNVVIKVCE FQFCNDPFLG VYYHKNNKSW MESEFRVYSS ANNCTFEYVS Q PFLMDLEG KQGNFKNLRE FVFKNIDGYF KIYSKHTPIN LVRDLPQGFS ALEPLVDLPI GINITRFQTL LALHRSYLTP GD SSSGWTA GAAAYYVGYL QPRTFLLKYN ENGTITDAVD CALDPLSETK CTLKSFTVEK GIYQTSNFRV QPTESIVRFP NIT NLCPFG EVFNATRFAS VYAWNRKRIS NCVADYSVLY NSASFSTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVRQ IAPG QTGKI ADYNYKLPDD FTGCVIAWNS NNLDSKVGGN YNYLYRLFRK SNLKPFERDI STEIYQAGST PCNGVEGFNC YFPLQ SYGF QPTNGVGYQP YRVVVLSFEL LHAPATVCGP KKSTNLVKNK CVNFNFNGLT GTGVLTESNK KFLPFQQFGR DIADTT DAV RDPQTLEILD ITPCSFGGVS VITPGTNTSN QVAVLYQDVN CTEVPVAIHA DQLTPTWRVY STGSNVFQTR AGCLIGA EH VNNSYECDIP IGAGICASYQ TQTNSPGSAS SVASQSIIAY TMSLGAENSV AYSNNSIAIP TNFTISVTTE ILPVSMTK T SVDCTMYICG DSTECSNLLL QYGSFCTQLN RALTGIAVEQ DKNTQEVFAQ VKQIYKTPPI KDFGGFNFSQ ILPDPSKPS KRSPIEDLLF NKVTLADAGF IKQYGDCLGD IAARDLICAQ KFNGLTVLPP LLTDEMIAQY TSALLAGTIT SGWTFGAGPA LQIPFPMQM AYRFNGIGVT QNVLYENQKL IANQFNSAIG KIQDSLSSTP SALGKLQDVV NQNAQALNTL VKQLSSNFGA I SSVLNDIL SRLDPPEAEV QIDRLITGRL QSLQTYVTQQ LIRAAEIRAS ANLAATKMSE CVLGQSKRVD FCGKGYHLMS FP QSAPHGV VFLHVTYVPA QEKNFTTAPA ICHDGKAHFP REGVFVSNGT HWFVTQRNFY EPQIITTDNT FVSGNCDVVI GIV NNTVYD PLQPELDSFK EELDKYFKNH TSPDVDLGDI SGINASVVNI QKEIDRLNEV AKNLNESLID LQELGKYEQ

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Macromolecule #7: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 7 / Number of copies: 27 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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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: 7.4
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV / Details: Blot for 4 seconds before plugging..
DetailsComplex at 0.5 mg/mL concentration in the presence of 0.005% DDM

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: OTHER / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.1 µm / Nominal defocus min: 1.1 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionSoftware - Name: cryoSPARC (ver. 2.15)
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

7kms

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.54 Å / Resolution method: FSC 0.5 CUT-OFF / Number images used: 123016
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE

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Atomic model buiding 1

Initial modelPDB ID:

7kms

RefinementSpace: REAL / Protocol: OTHER
Output model

PDB-7lrt:
Cryo-EM structure of SARS-CoV-2 spike in complex with neutralizing antibody A23-58.1 that targets the receptor-binding domain

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