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- EMDB-23662: Complex of SARS-CoV-2 receptor binding domain with the Fab fragme... -

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Basic information

Entry
Database: EMDB / ID: EMD-23662
TitleComplex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989
Map data
Sample
  • Complex: Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989
    • Protein or peptide: REGN10989 antibody Fab fragment light chain
    • Protein or peptide: REGN10989 antibody Fab fragment heavy chain
    • Protein or peptide: Spike protein S1
    • Protein or peptide: REGN10985 antibody Fab fragment light chain
    • Protein or peptide: REGN10985 antibody Fab fragment heavy chain
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 / 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 speciesSevere acute respiratory syndrome coronavirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsZhou Y / Romero Hernandez A / Saotome K / Franklin MC
CitationJournal: Cell / Year: 2021
Title: The monoclonal antibody combination REGEN-COV protects against SARS-CoV-2 mutational escape in preclinical and human studies.
Authors: Richard Copin / Alina Baum / Elzbieta Wloga / Kristen E Pascal / Stephanie Giordano / Benjamin O Fulton / Anbo Zhou / Nicole Negron / Kathryn Lanza / Newton Chan / Angel Coppola / Joyce Chiu ...Authors: Richard Copin / Alina Baum / Elzbieta Wloga / Kristen E Pascal / Stephanie Giordano / Benjamin O Fulton / Anbo Zhou / Nicole Negron / Kathryn Lanza / Newton Chan / Angel Coppola / Joyce Chiu / Min Ni / Yi Wei / Gurinder S Atwal / Annabel Romero Hernandez / Kei Saotome / Yi Zhou / Matthew C Franklin / Andrea T Hooper / Shane McCarthy / Sara Hamon / Jennifer D Hamilton / Hilary M Staples / Kendra Alfson / Ricardo Carrion / Shazia Ali / Thomas Norton / Selin Somersan-Karakaya / Sumathi Sivapalasingam / Gary A Herman / David M Weinreich / Leah Lipsich / Neil Stahl / Andrew J Murphy / George D Yancopoulos / Christos A Kyratsous /
Abstract: Monoclonal antibodies against SARS-CoV-2 are a clinically validated therapeutic option against COVID-19. Because rapidly emerging virus mutants are becoming the next major concern in the fight ...Monoclonal antibodies against SARS-CoV-2 are a clinically validated therapeutic option against COVID-19. Because rapidly emerging virus mutants are becoming the next major concern in the fight against the global pandemic, it is imperative that these therapeutic treatments provide coverage against circulating variants and do not contribute to development of treatment-induced emergent resistance. To this end, we investigated the sequence diversity of the spike protein and monitored emergence of virus variants in SARS-COV-2 isolates found in COVID-19 patients treated with the two-antibody combination REGEN-COV, as well as in preclinical in vitro studies using single, dual, or triple antibody combinations, and in hamster in vivo studies using REGEN-COV or single monoclonal antibody treatments. Our study demonstrates that the combination of non-competing antibodies in REGEN-COV provides protection against all current SARS-CoV-2 variants of concern/interest and also protects against emergence of new variants and their potential seeding into the population in a clinical setting.
History
DepositionMar 19, 2021-
Header (metadata) releaseJul 28, 2021-
Map releaseJul 28, 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: 0.16
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 0.16
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7m42
  • Surface level: 0.16
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_23662.png

Downloads & links

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Map

FileDownload / File: emd_23662.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.85 Å
Density
Contour LevelBy AUTHOR: 0.16 / Movie #1: 0.16
Minimum - Maximum-0.75712943 - 1.3197812
Average (Standard dev.)0.00026167586 (±0.034575917)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 255.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.850.850.85
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z255.000255.000255.000
α/β/γ90.00090.00090.000
start NX/NY/NZ1331310
NX/NY/NZ223226424
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.7571.3200.000

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Supplemental data

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Sample components

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Entire : Complex of SARS-CoV-2 receptor binding domain with the Fab fragme...

EntireName: Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989
Components
  • Complex: Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989
    • Protein or peptide: REGN10989 antibody Fab fragment light chain
    • Protein or peptide: REGN10989 antibody Fab fragment heavy chain
    • Protein or peptide: Spike protein S1
    • Protein or peptide: REGN10985 antibody Fab fragment light chain
    • Protein or peptide: REGN10985 antibody Fab fragment heavy chain

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Supramolecule #1: Complex of SARS-CoV-2 receptor binding domain with the Fab fragme...

SupramoleculeName: Complex of SARS-CoV-2 receptor binding domain with the Fab fragments of neutralizing antibodies REGN10985 and REGN10989
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Macromolecule #1: REGN10989 antibody Fab fragment light chain

MacromoleculeName: REGN10989 antibody Fab fragment light chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.709975 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: QSALTQPASV SGSPGQSITI SCTGTSSDVG TYNYVSWYQQ HPGKAPKLMI FDVSNRPSGV SDRFSGSKSG NTASLTISGL QAEDEADYY CSSFTTSSTV VFGGGTKLTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP ...String:
QSALTQPASV SGSPGQSITI SCTGTSSDVG TYNYVSWYQQ HPGKAPKLMI FDVSNRPSGV SDRFSGSKSG NTASLTISGL QAEDEADYY CSSFTTSSTV VFGGGTKLTV LGQPKAAPSV TLFPPSSEEL QANKATLVCL ISDFYPGAVT VAWKADSSPV K AGVETTTP SKQSNNKYAA SSYLSLTPEQ WKSHRSYSCQ VTHEGSTVEK TVAPTECS

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Macromolecule #2: REGN10989 antibody Fab fragment heavy chain

MacromoleculeName: REGN10989 antibody Fab fragment heavy chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.815834 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: QVQLVQSGAE VKKPGASVKV SCKASGYIFT GYYMHWVRQA PGQGLEWMGW INPNSGGANY AQKFQGRVTL TRDTSITTVY MELSRLRFD DTAVYYCARG SRYDWNQNNW FDPWGQGTLV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA ...String:
QVQLVQSGAE VKKPGASVKV SCKASGYIFT GYYMHWVRQA PGQGLEWMGW INPNSGGANY AQKFQGRVTL TRDTSITTVY MELSRLRFD DTAVYYCARG SRYDWNQNNW FDPWGQGTLV TVSSASTKGP SVFPLAPSSK STSGGTAALG CLVKDYFPEP V TVSWNSGA LTSGVHTFPA VLQSSGLYSL SSVVTVPSSS LGTQTYICNV NHKPSNTKVD KKVEPKSCDK T

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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: 28.437902 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: RVQPTESIVR FPNITNLCPF GEVFNATRFA SVYAWNRKRI SNCVADYSVL YNSASFSTFK CYGVSPTKLN DLCFTNVYAD SFVIRGDEV RQIAPGQTGK IADYNYKLPD DFTGCVIAWN SNNLDSKVGG NYNYLYRLFR KSNLKPFERD ISTEIYQAGS T PCNGVEGF ...String:
RVQPTESIVR FPNITNLCPF GEVFNATRFA SVYAWNRKRI SNCVADYSVL YNSASFSTFK CYGVSPTKLN DLCFTNVYAD SFVIRGDEV RQIAPGQTGK IADYNYKLPD DFTGCVIAWN SNNLDSKVGG NYNYLYRLFR KSNLKPFERD ISTEIYQAGS T PCNGVEGF NCYFPLQSYG FQPTNGVGYQ PYRVVVLSFE LLHAPATVCG PKKSTNLVKN KCVNFEQKLI SEEDLGGEQK LI SEEDLHH HHHH

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Macromolecule #4: REGN10985 antibody Fab fragment light chain

MacromoleculeName: REGN10985 antibody Fab fragment light chain / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.89518 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: QSVLTQPPSV SGAPGQRVTI SCTGSSSNIG AGYDVHWYQQ LPGTAPKLLI YGNSNRPSGV PDRFSGSKSG TSASLAITGL QAEDEADYY CQSYDSSLSG SYVFGTGTKV TVLGQPKAAP SVTLFPPSSE ELQANKATLV CLISDFYPGA VTVAWKADSS P VKAGVETT ...String:
QSVLTQPPSV SGAPGQRVTI SCTGSSSNIG AGYDVHWYQQ LPGTAPKLLI YGNSNRPSGV PDRFSGSKSG TSASLAITGL QAEDEADYY CQSYDSSLSG SYVFGTGTKV TVLGQPKAAP SVTLFPPSSE ELQANKATLV CLISDFYPGA VTVAWKADSS P VKAGVETT TPSKQSNNKY AASSYLSLTP EQWKSHRSYS CQVTHEGSTV EKTVAPTECS

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Macromolecule #5: REGN10985 antibody Fab fragment heavy chain

MacromoleculeName: REGN10985 antibody Fab fragment heavy chain / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.857811 KDa
Recombinant expressionOrganism: Cricetulus griseus (Chinese hamster)
SequenceString: EVQLVESGGG LVQPGRSLRL SCAASGFTFD DYAMHWVRQA PGKGLEWVSG ISWNRGSIGY ADSVKGRFTI SRDNAKNSLY LQMSSLRAE DTALYYCAKD GERWDSVVVP SARNGMDVWG QGTTVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS ...String:
EVQLVESGGG LVQPGRSLRL SCAASGFTFD DYAMHWVRQA PGKGLEWVSG ISWNRGSIGY ADSVKGRFTI SRDNAKNSLY LQMSSLRAE DTALYYCAKD GERWDSVVVP SARNGMDVWG QGTTVTVSSA STKGPSVFPL APSSKSTSGG TAALGCLVKD Y FPEPVTVS WNSGALTSGV HTFPAVLQSS GLYSLSSVVT VPSSSLGTQT YICNVNHKPS NTKVDKKVEP KSCDKT

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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: 7.5
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 K3 BIOQUANTUM (6k x 4k) / Average electron dose: 40.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 146054

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