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- PDB-7e3l: Ultrapotent SARS-CoV-2 neutralizing antibodies with protective ef... -

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Basic information

Entry
Database: PDB / ID: 7e3l
TitleUltrapotent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants
Components
  • 58G6 heavy chain
  • 58G6 light chain
  • Spike glycoproteinSpike protein
KeywordsVIRAL PROTEIN / COVID-19 / spike glycoprotein / virus / antibody
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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsGuo, H. / Li, T. / Liu, F. / Gao, Y. / Ji, X. / Yang, H.
CitationJournal: Nat Commun / Year: 2021
Title: Potent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants.
Authors: Tingting Li / Xiaojian Han / Chenjian Gu / Hangtian Guo / Huajun Zhang / Yingming Wang / Chao Hu / Kai Wang / Fengjiang Liu / Feiyang Luo / Yanan Zhang / Jie Hu / Wang Wang / Shenglong Li / ...Authors: Tingting Li / Xiaojian Han / Chenjian Gu / Hangtian Guo / Huajun Zhang / Yingming Wang / Chao Hu / Kai Wang / Fengjiang Liu / Feiyang Luo / Yanan Zhang / Jie Hu / Wang Wang / Shenglong Li / Yanan Hao / Meiying Shen / Jingjing Huang / Yingyi Long / Shuyi Song / Ruixin Wu / Song Mu / Qian Chen / Fengxia Gao / Jianwei Wang / Shunhua Long / Luo Li / Yang Wu / Yan Gao / Wei Xu / Xia Cai / Di Qu / Zherui Zhang / Hongqing Zhang / Na Li / Qingzhu Gao / Guiji Zhang / Changlong He / Wei Wang / Xiaoyun Ji / Ni Tang / Zhenghong Yuan / Youhua Xie / Haitao Yang / Bo Zhang / Ailong Huang / Aishun Jin /
Abstract: Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor ...Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor binding domain (RBD) specific monoclonal antibodies (mAbs), 58G6, 510A5 and 13G9, with high neutralizing potency blocking authentic SARS-CoV-2 virus display remarkable efficacy against authentic B.1.351 virus. Surprisingly, structural analysis has revealed that 58G6 and 13G9 both recognize the steric region S on the RBD, overlapping the E484K mutation presented in B.1.351. Also, 58G6 directly binds to another region S in the RBD. Significantly, 58G6 and 510A5 both demonstrate prophylactic efficacy against authentic SARS-CoV-2 and B.1.351 viruses in the transgenic mice expressing human ACE2 (hACE2), protecting weight loss and reducing virus loads. Together, we have evidenced 2 potent neutralizing Abs with unique mechanism targeting authentic SARS-CoV-2 mutants, which can be promising candidates to fulfill the urgent needs for the prolonged COVID-19 pandemic.
History
DepositionFeb 9, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 15, 2021Provider: repository / Type: Initial release
Revision 1.1Mar 2, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

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  • Deposited structure unit
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  • EMDB-30983
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Structure viewerMolecule:
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Assembly

Deposited unit
A: Spike glycoprotein
B: Spike glycoprotein
C: Spike glycoprotein
H: 58G6 heavy chain
L: 58G6 light chain
F: 58G6 heavy chain
G: 58G6 light chain
D: 58G6 heavy chain
E: 58G6 light chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)572,78829
Polymers568,3649
Non-polymers4,42420
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area35970 Å2
ΔGint-137 kcal/mol
Surface area198300 Å2

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Components

#1: Protein Spike glycoprotein / Spike protein / S glycoprotein / E2 / Peplomer protein


Mass: 142319.219 Da / Num. of mol.: 3 / Mutation: R682G, R683S, R685S, K986P, V987P
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Gene: S, 2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#2: Antibody 58G6 heavy chain


Mass: 23557.422 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293 / Production host: Homo sapiens (human)
#3: Antibody 58G6 light chain


Mass: 23578.066 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): HEK293 / Production host: Homo sapiens (human)
#4: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 20 / Source method: obtained synthetically / Formula: C8H15NO6 / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSourceDetails
1SARS-CoV-2 Spike glycoprotein complex with 58G6 FabCOMPLEX#1-#30MULTIPLE SOURCES
2spike glycoproteinSpike proteinCOMPLEX#11RECOMBINANTSARS-CoV-2 Spike protein ectodomain
3FabFragment antigen-bindingCOMPLEX#2-#31RECOMBINANTFab fragment generated by proteolytic cleavage of IgG antibody
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
11Severe acute respiratory syndrome coronavirus 22697049
22Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-IDCell
11Homo sapiens (human)9606HEK293
22Homo sapiens (human)9606HEK293
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.16_3549: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 108020 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00533741
ELECTRON MICROSCOPYf_angle_d0.97845933
ELECTRON MICROSCOPYf_dihedral_angle_d11.69524906
ELECTRON MICROSCOPYf_chiral_restr0.0555337
ELECTRON MICROSCOPYf_plane_restr0.0075910

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