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- EMDB-34164: Complex structure of BD-218 and Spike protein -

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Basic information

Entry
Database: EMDB / ID: EMD-34164
TitleComplex structure of BD-218 and Spike protein
Map data
Sample
  • Complex: Complex of BD-218 with spike protein of SARS-CoV-2
    • Complex: spike protein of SARS-CoV-2
      • Protein or peptide: Spike glycoproteinSpike protein
    • Complex: BD-218
      • Protein or peptide: Heavy chain of BD-218
      • Protein or peptide: Light chain of BD-218
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
KeywordsSARS-CoV-2 / Neutralizing monoclonal antibody / ANTIVIRAL PROTEIN / VIRAL PROTEIN-ANTIVIRAL PROTEIN 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 / 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: 3.74 Å
AuthorsWang B / Xu H / Su XD
Funding support China, 1 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2020YFC0848700 China
CitationJournal: Int J Biol Macromol / Year: 2023
Title: Human antibody BD-218 has broad neutralizing activity against concerning variants of SARS-CoV-2.
Authors: Bo Wang / Hua Xu / Zi-Teng Liang / Tian-Ning Zhao / Xin Zhang / Tian-Bo Peng / You-Chun Wang / Xiao-Dong Su /
Abstract: As SARS-CoV-2 variants of concern (VOC) reduce the effectiveness of existing anti-COVID therapeutics, it is increasingly critical to identify highly potent neutralizing antibodies (nAbs) that bind to ...As SARS-CoV-2 variants of concern (VOC) reduce the effectiveness of existing anti-COVID therapeutics, it is increasingly critical to identify highly potent neutralizing antibodies (nAbs) that bind to conserved regions across multiple variants, especially beta, delta, and omicron variants. Using single-cell sequencing with biochemical methods and pseudo-typed virus neutralization experiments, here we report the characterization of a potent nAb BD-218, identified from an early screen of patients recovering from the original virus. We have determined the cryo-EM structure of the BD-218/spike protein complex to define its epitope in detail, which revealed that BD-218 interacts with a novel epitope on the receptor-binding domain (RBD) of the spike protein. We concluded that BD-218 is a highly effective and broadly active nAb against SARS-CoV-2 variants with promising potential for therapeutic development.
History
DepositionAug 23, 2022-
Header (metadata) releaseAug 30, 2023-
Map releaseAug 30, 2023-
UpdateMar 13, 2024-
Current statusMar 13, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34164.png

Downloads & links

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Map

FileDownload / File: emd_34164.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.055 Å
Density
Contour LevelBy AUTHOR: 0.3
Minimum - Maximum-0.54100645 - 1.6228681
Average (Standard dev.)0.0018792734 (±0.039984427)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 421.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_34164_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_34164_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Complex of BD-218 with spike protein of SARS-CoV-2

EntireName: Complex of BD-218 with spike protein of SARS-CoV-2
Components
  • Complex: Complex of BD-218 with spike protein of SARS-CoV-2
    • Complex: spike protein of SARS-CoV-2
      • Protein or peptide: Spike glycoproteinSpike protein
    • Complex: BD-218
      • Protein or peptide: Heavy chain of BD-218
      • Protein or peptide: Light chain of BD-218
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

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Supramolecule #1: Complex of BD-218 with spike protein of SARS-CoV-2

SupramoleculeName: Complex of BD-218 with spike protein of SARS-CoV-2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Molecular weightTheoretical: 430 KDa

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Supramolecule #2: spike protein of SARS-CoV-2

SupramoleculeName: spike protein of SARS-CoV-2 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Severe acute respiratory syndrome coronavirus 2

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Supramolecule #3: BD-218

SupramoleculeName: BD-218 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2-#3
Source (natural)Organism: Homo sapiens (human)

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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: 133.781312 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF ...String:
MFVFLVLLPL VSSQCVNLTT RTQLPPAYTN SFTRGVYYPD KVFRSSVLHS TQDLFLPFFS NVTWFHAIHV SGTNGTKRFD NPVLPFNDG VYFASTEKSN IIRGWIFGTT LDSKTQSLLI VNNATNVVIK VCEFQFCNDP FLGVYYHKNN KSWMESEFRV Y SSANNCTF EYVSQPFLMD LEGKQGNFKN LREFVFKNID GYFKIYSKHT PINLVRDLPQ GFSALEPLVD LPIGINITRF QT LLALHRS YLTPGDSSSG WTAGAAAYYV GYLQPRTFLL KYNENGTITD AVDCALDPLS ETKCTLKSFT VEKGIYQTSN FRV QPTESI VRFPNITNLC PFGEVFNATR FASVYAWNRK RISNCVADYS VLYNSASFST FKCYGVSPTK LNDLCFTNVY ADSF VIRGD EVRQIAPGQT GKIADYNYKL PDDFTGCVIA WNSNNLDSKV GGNYNYLYRL FRKSNLKPFE RDISTEIYQA GSTPC NGVE GFNCYFPLQS YGFQPTNGVG YQPYRVVVLS FELLHAPATV CGPKKSTNLV KNKCVNFNFN GLTGTGVLTE SNKKFL PFQ QFGRDIADTT DAVRDPQTLE ILDITPCSFG GVSVITPGTN TSNQVAVLYQ DVNCTEVPVA IHADQLTPTW RVYSTGS NV FQTRAGCLIG AEHVNNSYEC DIPIGAGICA SYQTQTNSPG SASSVASQSI IAYTMSLGAE NSVAYSNNSI AIPTNFTI S VTTEILPVSM TKTSVDCTMY ICGDSTECSN LLLQYGSFCT QLNRALTGIA VEQDKNTQEV FAQVKQIYKT PPIKDFGGF NFSQILPDPS KPSKRSPIED LLFNKVTLAD AGFIKQYGDC LGDIAARDLI CAQKFNGLTV LPPLLTDEMI AQYTSALLAG TITSGWTFG AGPALQIPFP MQMAYRFNGI GVTQNVLYEN QKLIANQFNS AIGKIQDSLS STPSALGKLQ DVVNQNAQAL N TLVKQLSS NFGAISSVLN DILSRLDPPE AEVQIDRLIT GRLQSLQTYV TQQLIRAAEI RASANLAATK MSECVLGQSK RV DFCGKGY HLMSFPQSAP HGVVFLHVTY VPAQEKNFTT APAICHDGKA HFPREGVFVS NGTHWFVTQR NFYEPQIITT DNT FVSGNC DVVIGIVNNT VYDPLQPELD SFKEELDKYF KNHTSPDVDL GDISGINASV VNIQKEIDRL NEVAKNLNES LIDL QELGK YEQ

UniProtKB: Spike glycoprotein

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Macromolecule #2: Heavy chain of BD-218

MacromoleculeName: Heavy chain of BD-218 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 34.699172 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: GWSLILLFLV AVATRVLSQV QLQQWGAGLL KPSETLSLTC AVYGGSFSDY FWYWIRQPPG KGLEWIGEIN HSGSTNYNPS LKSRVSISV DTSKNQFSLK LSSVTAADTA VYYCARGQGY GRVLLWFGEW GQGTLVTVSS ASTKGPSVFP LAPSSKSTSG G TAALGCLV ...String:
GWSLILLFLV AVATRVLSQV QLQQWGAGLL KPSETLSLTC AVYGGSFSDY FWYWIRQPPG KGLEWIGEIN HSGSTNYNPS LKSRVSISV DTSKNQFSLK LSSVTAADTA VYYCARGQGY GRVLLWFGEW GQGTLVTVSS ASTKGPSVFP LAPSSKSTSG G TAALGCLV KDYFPEPVTV SWNSGALTSG VHTFPAVLQS SGLYSLSSVV TVPSSSLGTQ TYICNVNHKP SNTKVDKKVE PK SCDKTHT CPPCPAPELL GGPSVFLFPP KPKDTLMISR TPEVTCVVVD VSHEDPEVKF NWYVDGVEVH NAKTKPREEQ YNS T

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Macromolecule #3: Light chain of BD-218

MacromoleculeName: Light chain of BD-218 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 25.356305 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGWSCIILFL VATATGVHSE IVLTQSPATL SLSPGERATL SCRASQSVSS YLAWYQQKPG QAPRLLIYDA SNRATGIPAR FSGSGSGTD FTLTISSLEP EDFAVYYCQQ RSNWITFGQG TRLEIKRTVA APSVFIFPPS DEQLKSGTAS VVCLLNNFYP R EAKVQWKV ...String:
MGWSCIILFL VATATGVHSE IVLTQSPATL SLSPGERATL SCRASQSVSS YLAWYQQKPG QAPRLLIYDA SNRATGIPAR FSGSGSGTD FTLTISSLEP EDFAVYYCQQ RSNWITFGQG TRLEIKRTVA APSVFIFPPS DEQLKSGTAS VVCLLNNFYP R EAKVQWKV DNALQSGNSQ ESVTEQDSKD STYSLSSTLT LSKADYEKHK VYACEVTHQG LSSPVTKSFN RGEC

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Macromolecule #5: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 5 / Number of copies: 32 / 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

Concentration0.2 mg/mL
BufferpH: 8 / Details: 25mM Tris, pH 8.0, 150mM NaCl
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 45 sec. / Pretreatment - Atmosphere: OTHER
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 4 K / Instrument: FEI VITROBOT MARK IV

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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: 1.5 µm / Nominal defocus min: 0.7000000000000001 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.78125 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

30374

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: NOT APPLICABLE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.74 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 297084

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Atomic model buiding 1

RefinementSpace: REAL
Output model

PDB-8gnh:
Complex structure of BD-218 and Spike protein

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