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- EMDB-37241: The interface structure of Omicron RBD binding to 5817 Fab -

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Basic information

Entry
Database: EMDB / ID: EMD-37241
TitleThe interface structure of Omicron RBD binding to 5817 Fab
Map data
Sample
  • Complex: The interface structure of Omicron RBD binding to 5817 Fab
    • Protein or peptide: Heavy chain of 5817
    • Protein or peptide: Light chain of 5817
    • Protein or peptide: Spike protein S1
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsSARS-CoV-2 / Omicron / RBD / Fab / VIRAL PROTEIN
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 speciesSevere acute respiratory syndrome coronavirus 2 / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsCao L / Wang X
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Cell Rep / Year: 2024
Title: Identification of a broad sarbecovirus neutralizing antibody targeting a conserved epitope on the receptor-binding domain.
Authors: Yanqun Wang / Zhaoyong Zhang / Minnan Yang / Xinyi Xiong / Qihong Yan / Lei Cao / Peilan Wei / Yuting Zhang / Lu Zhang / Kexin Lv / Jiantao Chen / Xuesong Liu / Xiaochu Zhao / Juxue Xiao / ...Authors: Yanqun Wang / Zhaoyong Zhang / Minnan Yang / Xinyi Xiong / Qihong Yan / Lei Cao / Peilan Wei / Yuting Zhang / Lu Zhang / Kexin Lv / Jiantao Chen / Xuesong Liu / Xiaochu Zhao / Juxue Xiao / Shengnan Zhang / Airu Zhu / Mian Gan / Jingjun Zhang / Ruoxi Cai / Jianfen Zhuo / Yanjun Zhang / Haiyue Rao / Bin Qu / Yuanyuan Zhang / Lei Chen / Jun Dai / Linling Cheng / Qingtao Hu / Yaoqing Chen / Huibin Lv / Ray T Y So / Malik Peiris / Jingxian Zhao / Xiaoqing Liu / Chris Ka Pun Mok / Xiangxi Wang / Jincun Zhao /
Abstract: Omicron, as the emerging variant with enhanced vaccine tolerance, has sharply disrupted most therapeutic antibodies. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) belongs to the ...Omicron, as the emerging variant with enhanced vaccine tolerance, has sharply disrupted most therapeutic antibodies. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) belongs to the subgenus Sarbecovirus, members of which share high sequence similarity. Herein, we report one sarbecovirus antibody, 5817, which has broad-spectrum neutralization capacity against SARS-CoV-2 variants of concern (VOCs) and SARS-CoV, as well as related bat and pangolin viruses. 5817 can hardly compete with six classes of receptor-binding-domain-targeted antibodies grouped by structural classifications. No obvious impairment in the potency is detected against SARS-CoV-2 Omicron and subvariants. The cryoelectron microscopy (cryo-EM) structure of neutralizing antibody 5817 in complex with Omicron spike reveals a highly conserved epitope, only existing at the receptor-binding domain (RBD) open state. Prophylactic and therapeutic administration of 5817 potently protects mice from SARS-CoV-2 Beta, Delta, Omicron, and SARS-CoV infection. This study reveals a highly conserved cryptic epitope targeted by a broad sarbecovirus neutralizing antibody, which would be beneficial to meet the potential threat of pre-emergent SARS-CoV-2 VOCs.
History
DepositionAug 21, 2023-
Header (metadata) releaseApr 17, 2024-
Map releaseApr 17, 2024-
UpdateApr 17, 2024-
Current statusApr 17, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_37241.png

Downloads & links

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Map

FileDownload / File: emd_37241.map.gz / Format: CCP4 / Size: 178 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.)
1.06 Å/pix.
x 360 pix.
= 381.6 Å		1.06 Å/pix.
x 360 pix.
= 381.6 Å		1.06 Å/pix.
x 360 pix.
= 381.6 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.45
Minimum - Maximum-4.5215735 - 6.9326234
Average (Standard dev.)-0.0022465107 (±0.057368267)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 381.59998 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_37241_half_map_1.map
Projections & Slices
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Histogram

Histogram (log scale)

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Half map: #2

Fileemd_37241_half_map_2.map
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Sample components

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Entire : The interface structure of Omicron RBD binding to 5817 Fab

EntireName: The interface structure of Omicron RBD binding to 5817 Fab
Components
  • Complex: The interface structure of Omicron RBD binding to 5817 Fab
    • Protein or peptide: Heavy chain of 5817
    • Protein or peptide: Light chain of 5817
    • Protein or peptide: Spike protein S1
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: The interface structure of Omicron RBD binding to 5817 Fab

SupramoleculeName: The interface structure of Omicron RBD binding to 5817 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: Heavy chain of 5817

MacromoleculeName: Heavy chain of 5817 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.387045 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EVQLVESGGG LVKPGGSLRL SCAASGFSFS DAWMSWVRQA PGKGLEWVGR VSSEIGGGTT DYAAPVKGRF TISRDDSKNT LFLQMSSLK TEDTAVYYCT TGVDIVVMMY ADDAFDIWGQ GTMVTV

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Macromolecule #2: Light chain of 5817

MacromoleculeName: Light chain of 5817 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.470526 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
ELTQDPAVSV ALGQTVRITC QGDSLRSYYA SWYQQKPGQA PVLVIYGKNN RPSGIPDRFS GSSSGNTASL TITGPQAEDE ADYYCTSRD SSGNHVIFGG GTKLTVLGQ

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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: 22.836854 KDa
Recombinant expressionOrganism: Severe acute respiratory syndrome coronavirus 2
SequenceString: PNITNLCPFD EVFNATRFAS VYAWNRKRIS NCVADYSVLY NLAPFFTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVRQ IAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKVSGN YNYLYRLFRK SNLKPFERDI STEIYQAGNK PCNGVAGFNC Y FPLRSYSF ...String:
PNITNLCPFD EVFNATRFAS VYAWNRKRIS NCVADYSVLY NLAPFFTFKC YGVSPTKLND LCFTNVYADS FVIRGDEVRQ IAPGQTGNI ADYNYKLPDD FTGCVIAWNS NKLDSKVSGN YNYLYRLFRK SNLKPFERDI STEIYQAGNK PCNGVAGFNC Y FPLRSYSF RPTYGVGHQP YRVVVLSFEL LHAPATVCGP KKS

UniProtKB: Spike glycoprotein

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Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 1 / 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: 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 / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 45.0 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: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 5129

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