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- EMDB-33150: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex wi... -

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Entry
Database: EMDB / ID: EMD-33150
TitleCryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Map dataCryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Sample
  • Complex: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
    • Complex: SARS-CoV-2 Delta Spike protein
      • Protein or peptide: Spike glycoproteinSpike protein
    • Complex: BA7054 and BA7125 fab
      • Protein or peptide: BA7125 fab
      • Protein or peptide: BA7125 fab
      • Protein or peptide: BA7054 fab
      • Protein or peptide: BA7054 fab
  • 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 / 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 speciesSevere acute respiratory syndrome coronavirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsLiu Z / Lui S / Gao Y
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Cell Discov / Year: 2023
Title: Biparatopic antibody BA7208/7125 effectively neutralizes SARS-CoV-2 variants including Omicron BA.1-BA.5.
Authors: Yanqun Wang / An Yan / Deyong Song / Chuangchuang Dong / Muding Rao / Yuanzhu Gao / Ruxi Qi / Xiaomin Ma / Qiaoping Wang / Hongguang Xu / Hong Liu / Jing Han / Maoqin Duan / Shuo Liu / ...Authors: Yanqun Wang / An Yan / Deyong Song / Chuangchuang Dong / Muding Rao / Yuanzhu Gao / Ruxi Qi / Xiaomin Ma / Qiaoping Wang / Hongguang Xu / Hong Liu / Jing Han / Maoqin Duan / Shuo Liu / Xiaoping Yu / Mengqi Zong / Jianxia Feng / Jie Jiao / Huimin Zhang / Min Li / Beibei Yu / Yanxia Wang / Fanhao Meng / Xiaodan Ni / Ying Li / Zhenduo Shen / Baiping Sun / Xin Shao / Haifeng Zhao / Yanyan Zhao / Rui Li / Yanan Zhang / Guangying Du / Jun Lu / Chunna You / Hua Jiang / Lu Zhang / Lan Wang / Changlin Dou / Zheng Liu / Jincun Zhao /
Abstract: SARS-CoV-2 Omicron subvariants have demonstrated extensive evasion from monoclonal antibodies (mAbs) developed for clinical use, which raises an urgent need to develop new broad-spectrum mAbs. Here, ...SARS-CoV-2 Omicron subvariants have demonstrated extensive evasion from monoclonal antibodies (mAbs) developed for clinical use, which raises an urgent need to develop new broad-spectrum mAbs. Here, we report the isolation and analysis of two anti-RBD neutralizing antibodies BA7208 and BA7125 from mice engineered to produce human antibodies. While BA7125 showed broadly neutralizing activity against all variants except the Omicron sublineages, BA7208 was potently neutralizing against all tested SARS-CoV-2 variants (including Omicron BA.1-BA.5) except Mu. By combining BA7208 and BA7125 through the knobs-into-holes technology, we generated a biparatopic antibody BA7208/7125 that was able to neutralize all tested circulating SARS-CoV-2 variants. Cryo-electron microscopy structure of these broad-spectrum antibodies in complex with trimeric Delta and Omicron spike indicated that the contact residues are highly conserved and had minimal interactions with mutational residues in RBD of current variants. In addition, we showed that administration of BA7208/7125 via the intraperitoneal, intranasal, or aerosol inhalation route showed potent therapeutic efficacy against Omicron BA.1 and BA.2 in hACE2-transgenic and wild-type mice and, separately, effective prophylaxis. BA7208/7125 thus has the potential to be an effective candidate as an intervention against COVID-19.
History
DepositionMar 27, 2022-
Header (metadata) releaseMar 1, 2023-
Map releaseMar 1, 2023-
UpdateApr 12, 2023-
Current statusApr 12, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_33150.png

Downloads & links

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Map

FileDownload / File: emd_33150.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationCryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Voxel sizeX=Y=Z: 1.072 Å
Density
Contour LevelBy AUTHOR: 0.25
Minimum - Maximum-2.3468964 - 4.0786986
Average (Standard dev.)0.00017617349 (±0.08862165)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 385.92 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in...

Fileemd_33150_half_map_1.map
AnnotationCryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in...

Fileemd_33150_half_map_2.map
AnnotationCryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex wi...

EntireName: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
Components
  • Complex: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
    • Complex: SARS-CoV-2 Delta Spike protein
      • Protein or peptide: Spike glycoproteinSpike protein
    • Complex: BA7054 and BA7125 fab
      • Protein or peptide: BA7125 fab
      • Protein or peptide: BA7125 fab
      • Protein or peptide: BA7054 fab
      • Protein or peptide: BA7054 fab
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex wi...

SupramoleculeName: Cryo-EM structure of SARS-CoV-2 Delta Spike protein in complex with BA7054 and BA7125 fab
type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Supramolecule #2: SARS-CoV-2 Delta Spike protein

SupramoleculeName: SARS-CoV-2 Delta Spike protein / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: BA7054 and BA7125 fab

SupramoleculeName: BA7054 and BA7125 fab / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2-#5

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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: 123.748195 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HAIHVSGTNG TKRFDNPVLP FNDGVYFAST EKSNIIRGWI FGTTLDSKT QSLLIVNNAT NVVIKVCEFQ FCNDPFLDVY YHKNNKSWMD MESGVYSSAN NCTFEYVSQP FLMDLEGKQG N FKNLREFV ...String:
PAYTNSFTRG VYYPDKVFRS SVLHSTQDLF LPFFSNVTWF HAIHVSGTNG TKRFDNPVLP FNDGVYFAST EKSNIIRGWI FGTTLDSKT QSLLIVNNAT NVVIKVCEFQ FCNDPFLDVY YHKNNKSWMD MESGVYSSAN NCTFEYVSQP FLMDLEGKQG N FKNLREFV FKNIDGYFKI YSKHTPINLV RDLPQGFSAL EPLVDLPIGI NITRFQTLLA LHRSYLTPGD SSSGWTAGAA AY YVGYLQP RTFLLKYNEN GTITDAVDCA LDPLSETKCT LKSFTVEKGI YQTSNFRVQP TESIVRFPNI TNLCPFGEVF NAT RFASVY AWNRKRISNC VADYSVLYNS ASFSTFKCYG VSPTKLNDLC FTNVYADSFV IRGDEVRQIA PGQTGKIADY NYKL PDDFT GCVIAWNSNN LDSKVGGNYN YRYRLFRKSN LKPFERDIST EIYQAGSKPC NGVEGFNCYF PLQSYGFQPT NGVGY QPYR VVVLSFELLH APATVCGPKK DCNLVKNKCV NFNFNGLTGT GVLTESNKKF LPFQQFGRDI ADTTDAVRDP QTLEIL DIT PCSFGGVSVI TPGTNTSNQV AVLYQGVNCT EVPVAIHADQ LTPTWRVYST GSNVFQTRAG CLIGAEHVNN SYECDIP IG AGICASYQTQ TNSPRRARSV ASQSIIAYTM SLGAENSVAY SNNSIAIPTN FTISVTTEIL PVSMTKTSVD CTMYICGD S TECSNLLLQY GSFCTQLNRA LTGIAVEQDK NTQEVFAQVK QIYKTPPIKD FGGFNFSQIL PDPSKPSKRS FIEDLLFNK VTLADAGFIK QYGDCLGDIA ARDLICAQKF NGLTVLPPLL TDEMIAQYTS ALLAGTITSG WTFGAGAALQ IPFAMQMAYR FNGIGVTQN VLYENQKLIA NQFNSAIGKI QDSLSSTASA LGKLQNVVNQ NAQALNTLVK QLSSNFGAIS SVLNDILSRL D PPEAEVQI DRLITGRLQS LQTYVTQQLI RAAEIRASAN LAATKMSECV LGQSKRVDFC GKGYHLMSFP QSAPHGVVFL HV TYVPAQE KNFTTAPAIC HDGKAHFPRE GVFVSNGTHW FVTQRNFYEP QIITTDNTFV SGNCDVVIGI VNNTVYDPLQ P

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Macromolecule #2: BA7125 fab

MacromoleculeName: BA7125 fab / type: protein_or_peptide / ID: 2 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 22.849482 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: EVQLQQWGAG LLKPSETLSL TCAVYGESFS GYYWSWIRQS PGKGLEWIGQ INHSGNTNYN PSLKSRVTMS VDTSKNQFSL KLSSVTAAD TAVYYCAREL GHDYWGQGTL VTVSSASTKG PSVFPLAPSS KSTSGGTAAL GCLVKDYFPE PVTVSWNSGA L TSGVHTFP ...String:
EVQLQQWGAG LLKPSETLSL TCAVYGESFS GYYWSWIRQS PGKGLEWIGQ INHSGNTNYN PSLKSRVTMS VDTSKNQFSL KLSSVTAAD TAVYYCAREL GHDYWGQGTL VTVSSASTKG PSVFPLAPSS KSTSGGTAAL GCLVKDYFPE PVTVSWNSGA L TSGVHTFP AVLQSSGLYS LSSVVTVPSS SLGTQTYICN VNHKPSNTKV DKKVEP

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Macromolecule #3: BA7125 fab

MacromoleculeName: BA7125 fab / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 23.328883 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: EIVMTQSPGT LSLSPGERAT LSCRASQSIS SSYLAWFQQK PGQAPRLLIY GASSRAPGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QQYGDSPLTF GGGTKVDIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD ...String:
EIVMTQSPGT LSLSPGERAT LSCRASQSIS SSYLAWFQQK PGQAPRLLIY GASSRAPGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYC QQYGDSPLTF GGGTKVDIKR TVAAPSVFIF PPSDEQLKSG TASVVCLLNN FYPREAKVQW KVDNALQSGN S QESVTEQD SKDSTYSLSS TLTLSKADYE KHKVYACEVT HQGLSSPVTK SFNRGEC

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Macromolecule #4: BA7054 fab

MacromoleculeName: BA7054 fab / type: protein_or_peptide / ID: 4 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.146583 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLVESGGG VVQPGRSLRL SCAASGFTFS SYAMHWVRQA PGKGLEWVAV ISFDGSNKYY ADSVKGRFTI SRDNSKNTLY LQMNSLRAE DTAVYYCARA SITTTDDGMD VWGQGTTVTV SS

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Macromolecule #5: BA7054 fab

MacromoleculeName: BA7054 fab / type: protein_or_peptide / ID: 5 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.431695 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
DIQMTQSPSS VSASVGDRVT ITCRASQGIS SWLAWYQQKP GKAPKLLIYA ASSLQSGVPS RFSGSGSGTD FTLTISSLQP EDFATYYCQ QANSFPFSFG PGTKVDIK

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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: 12 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

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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 / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.39 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: OTHER
Final angle assignmentType: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 246808

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