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- EMDB-22659: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody ... -

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Entry
Database: EMDB / ID: EMD-22659
TitleSARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab fragment
Map dataSharpened map
Sample
  • Complex: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: S2M11 Fab fragment (heavy chain)
    • Protein or peptide: S2M11 Fab fragment (light chain)
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsSARS-CoV-2 / COVID-19 / spike glycoprotein / fusion protein / neutralizing antibodies / Structural Genomics / Seattle Structural Genomics Center for Infectious Disease / SSGCID / 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 / 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: 2.6 Å
AuthorsTortorici MA / Veesler D
Funding support1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM120553
CitationJournal: Science / Year: 2020
Title: Ultrapotent human antibodies protect against SARS-CoV-2 challenge via multiple mechanisms.
Authors: M Alejandra Tortorici / Martina Beltramello / Florian A Lempp / Dora Pinto / Ha V Dang / Laura E Rosen / Matthew McCallum / John Bowen / Andrea Minola / Stefano Jaconi / Fabrizia Zatta / ...Authors: M Alejandra Tortorici / Martina Beltramello / Florian A Lempp / Dora Pinto / Ha V Dang / Laura E Rosen / Matthew McCallum / John Bowen / Andrea Minola / Stefano Jaconi / Fabrizia Zatta / Anna De Marco / Barbara Guarino / Siro Bianchi / Elvin J Lauron / Heather Tucker / Jiayi Zhou / Alessia Peter / Colin Havenar-Daughton / Jason A Wojcechowskyj / James Brett Case / Rita E Chen / Hannah Kaiser / Martin Montiel-Ruiz / Marcel Meury / Nadine Czudnochowski / Roberto Spreafico / Josh Dillen / Cindy Ng / Nicole Sprugasci / Katja Culap / Fabio Benigni / Rana Abdelnabi / Shi-Yan Caroline Foo / Michael A Schmid / Elisabetta Cameroni / Agostino Riva / Arianna Gabrieli / Massimo Galli / Matteo S Pizzuto / Johan Neyts / Michael S Diamond / Herbert W Virgin / Gyorgy Snell / Davide Corti / Katja Fink / David Veesler /
Abstract: Efficient therapeutic options are needed to control the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused more than 922,000 fatalities as of 13 September 2020. We ...Efficient therapeutic options are needed to control the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused more than 922,000 fatalities as of 13 September 2020. We report the isolation and characterization of two ultrapotent SARS-CoV-2 human neutralizing antibodies (S2E12 and S2M11) that protect hamsters against SARS-CoV-2 challenge. Cryo-electron microscopy structures show that S2E12 and S2M11 competitively block angiotensin-converting enzyme 2 (ACE2) attachment and that S2M11 also locks the spike in a closed conformation by recognition of a quaternary epitope spanning two adjacent receptor-binding domains. Antibody cocktails that include S2M11, S2E12, or the previously identified S309 antibody broadly neutralize a panel of circulating SARS-CoV-2 isolates and activate effector functions. Our results pave the way to implement antibody cocktails for prophylaxis or therapy, circumventing or limiting the emergence of viral escape mutants.
History
DepositionSep 14, 2020-
Header (metadata) releaseOct 7, 2020-
Map releaseOct 7, 2020-
UpdateOct 30, 2024-
Current statusOct 30, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 1
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 1
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7k43
  • Surface level: 1
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-7k43
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_22659.png

Downloads & links

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Map

FileDownload / File: emd_22659.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.05 Å/pix.
x 400 pix.
= 420. Å		1.05 Å/pix.
x 400 pix.
= 420. Å		1.05 Å/pix.
x 400 pix.
= 420. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.05 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 1.0 / Movie #1: 1
Minimum - Maximum-6.010388 - 10.435338
Average (Standard dev.)0.004642946 (±0.13787074)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 419.99997 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.051.051.05
M x/y/z400400400
origin x/y/z0.0000.0000.000
length x/y/z420.000420.000420.000
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ510510510
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS400400400
D min/max/mean-6.01010.4350.005

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Supplemental data

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Additional map: Unsharpened map

Fileemd_22659_additional_1.map
AnnotationUnsharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map A

Fileemd_22659_half_map_1.map
AnnotationHalf map A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map B

Fileemd_22659_half_map_2.map
AnnotationHalf map B
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 spike in complex with the S2M11 neutralizing antibody Fab

EntireName: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab
Components
  • Complex: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab
    • Protein or peptide: Spike glycoprotein
    • Protein or peptide: S2M11 Fab fragment (heavy chain)
    • Protein or peptide: S2M11 Fab fragment (light chain)
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab

SupramoleculeName: SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
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: 141.532797 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGILPSPGMP ALLSLVSLLS VLLMGCVAET GTQCVNLTTR TQLPPAYTNS FTRGVYYPDK VFRSSVLHST QDLFLPFFSN VTWFHAIHV SGTNGTKRFD NPVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVVIKV CEFQFCNDPF L GVYYHKNN ...String:
MGILPSPGMP ALLSLVSLLS VLLMGCVAET GTQCVNLTTR TQLPPAYTNS FTRGVYYPDK VFRSSVLHST QDLFLPFFSN VTWFHAIHV SGTNGTKRFD NPVLPFNDGV YFASTEKSNI IRGWIFGTTL DSKTQSLLIV NNATNVVIKV CEFQFCNDPF L GVYYHKNN KSWMESEFRV YSSANNCTFE YVSQPFLMDL EGKQGNFKNL REFVFKNIDG YFKIYSKHTP INLVRDLPQG FS ALEPLVD LPIGINITRF QTLLALHRSY LTPGDSSSGW TAGAAAYYVG YLQPRTFLLK YNENGTITDA VDCALDPLSE TKC TLKSFT VEKGIYQTSN FRVQPTESIV RFPNITNLCP FGEVFNATRF ASVYAWNRKR ISNCVADYSV LYNSASFSTF KCYG VSPTK LNDLCFTNVY ADSFVIRGDE VRQIAPGQTG KIADYNYKLP DDFTGCVIAW NSNNLDSKVG GNYNYLYRLF RKSNL KPFE RDISTEIYQA GSTPCNGVEG FNCYFPLQSY GFQPTNGVGY QPYRVVVLSF ELLHAPATVC GPKKSTNLVK NKCVNF NFN GLTGTGVLTE SNKKFLPFQQ FGRDIADTTD AVRDPQTLEI LDITPCSFGG VSVITPGTNT SNQVAVLYQD VNCTEVP VA IHADQLTPTW RVYSTGSNVF QTRAGCLIGA EHVNNSYECD IPIGAGICAS YQTQTNSPSG AGSVASQSII AYTMSLGA E NSVAYSNNSI AIPTNFTISV TTEILPVSMT KTSVDCTMYI CGDSTECSNL LLQYGSFCTQ LNRALTGIAV EQDKNTQEV FAQVKQIYKT PPIKDFGGFN FSQILPDPSK PSKRSFIEDL LFNKVTLADA GFIKQYGDCL GDIAARDLIC AQKFNGLTVL PPLLTDEMI AQYTSALLAG TITSGWTFGA GAALQIPFAM QMAYRFNGIG VTQNVLYENQ KLIANQFNSA IGKIQDSLSS T ASALGKLQ DVVNQNAQAL NTLVKQLSSN FGAISSVLND ILSRLDPPEA EVQIDRLITG RLQSLQTYVT QQLIRAAEIR AS ANLAATK MSECVLGQSK RVDFCGKGYH LMSFPQSAPH GVVFLHVTYV PAQEKNFTTA PAICHDGKAH FPREGVFVSN GTH WFVTQR NFYEPQIITT DNTFVSGNCD VVIGIVNNTV YDPLQPELDS FKEELDKYFK NHTSPDVDLG DISGINASVV NIQK EIDRL NEVAKNLNES LIDLQELGKY EQYIKGSGRE NLYFQGGGGS GYIPEAPRDG QAYVRKDGEW VLLSTFLGHH HHHHH H

UniProtKB: Spike glycoprotein

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Macromolecule #2: S2M11 Fab fragment (heavy chain)

MacromoleculeName: S2M11 Fab fragment (heavy chain) / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.954489 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString:
EVQLVQSGAE VKKPGASVKV SCKASGYTFT GYYMHWVRQA PGQGLEWMGW INPISSGTSY AQTFQGRVTM TSDTSITTAY MELSRLRSD DTAVYYCARA APFYDFWSGY SYFDYWGQGT LVTVSS

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Macromolecule #3: S2M11 Fab fragment (light chain)

MacromoleculeName: S2M11 Fab fragment (light chain) / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.709023 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString:
EIVMMQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK PGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QQYGSSAWTF GQGTKVEIK

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Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 30 / 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: 8
GridModel: UltrAuFoil R2/2 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 70.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: ab initio
Final reconstructionApplied symmetry - Point group: C3 (3 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 141243
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING

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