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- PDB-7x1m: The complex structure of Omicron BA.1 RBD with BD604, S309,and S304 -

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Basic information

Entry
Database: PDB / ID: 7x1m
TitleThe complex structure of Omicron BA.1 RBD with BD604, S309,and S304
Components
  • BD-604 Fab heavy chain
  • BD-604 Fab light chain
  • S304 Fab haavy chain
  • S304 Fab light chain
  • S309 Fab heavy chain
  • S309 Fab light chain
  • Spike protein S1
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / antibody viral protein complex / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion ...symbiont-mediated disruption of host tissue / Maturation of spike protein / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / symbiont-mediated-mediated suppression of host tetherin activity / Induction of Cell-Cell Fusion / structural constituent of virion / membrane fusion / Attachment and Entry / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of viral entry into host cell / receptor-mediated virion attachment to host cell / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / endocytosis involved in viral entry into host cell / receptor ligand activity / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / virion attachment to host cell / host cell plasma membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / virion membrane / identical protein binding / membrane / 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 / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal ...Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, N-terminal domain superfamily / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein, betacoronavirus / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.74 Å
AuthorsHuang, M. / Xie, Y.F. / Qi, J.X.
Funding support China, 1items
OrganizationGrant numberCountry
Chinese Academy of SciencesYSBR-010 China
CitationJournal: Immunity / Year: 2022
Title: Atlas of currently available human neutralizing antibodies against SARS-CoV-2 and escape by Omicron sub-variants BA.1/BA.1.1/BA.2/BA.3.
Authors: Min Huang / Lili Wu / Anqi Zheng / Yufeng Xie / Qingwen He / Xiaoyu Rong / Pu Han / Pei Du / Pengcheng Han / Zengyuan Zhang / Runchu Zhao / Yunfei Jia / Linjie Li / Bin Bai / Ziliang Hu / ...Authors: Min Huang / Lili Wu / Anqi Zheng / Yufeng Xie / Qingwen He / Xiaoyu Rong / Pu Han / Pei Du / Pengcheng Han / Zengyuan Zhang / Runchu Zhao / Yunfei Jia / Linjie Li / Bin Bai / Ziliang Hu / Shixiong Hu / Sheng Niu / Yu Hu / Honghui Liu / Bo Liu / Kaige Cui / Weiwei Li / Xin Zhao / Kefang Liu / Jianxun Qi / Qihui Wang / George Fu Gao /
Abstract: SARS-CoV-2 Omicron variant has presented significant challenges to current antibodies and vaccines. Herein, we systematically compared the efficacy of 50 human monoclonal antibodies (mAbs), covering ...SARS-CoV-2 Omicron variant has presented significant challenges to current antibodies and vaccines. Herein, we systematically compared the efficacy of 50 human monoclonal antibodies (mAbs), covering the seven identified epitope classes of the SARS-CoV-2 RBD, against Omicron sub-variants BA.1, BA.1.1, BA.2, and BA.3. Binding and pseudovirus-based neutralizing assays revealed that 37 of the 50 mAbs lost neutralizing activities, whereas the others displayed variably decreased activities against the four Omicron sub-variants. BA.2 was found to be more sensitive to RBD-5 antibodies than the other sub-variants. Furthermore, a quaternary complex structure of BA.1 RBD with three mAbs showing different neutralizing potencies against Omicron provided a basis for understanding the immune evasion of Omicron sub-variants and revealed the lack of G446S mutation accounting for the sensitivity of BA.2 to RBD-5 mAbs. Our results may guide the application of the available mAbs and facilitate the development of universal therapeutic antibodies and vaccines against COVID-19.
History
DepositionFeb 24, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 6, 2022Provider: repository / Type: Initial release
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Revision 1.1Jul 19, 2023Group: Database references / Category: citation / citation_author
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Revision 1.2Oct 30, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
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Revision 1.1Jul 2, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: S309 Fab heavy chain
B: S309 Fab light chain
C: BD-604 Fab heavy chain
D: BD-604 Fab light chain
H: S304 Fab haavy chain
L: S304 Fab light chain
M: Spike protein S1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)165,8818
Polymers165,3107
Non-polymers5711
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Antibody , 6 types, 6 molecules ABCDHL

#1: Antibody S309 Fab heavy chain


Mass: 24573.471 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#2: Antibody S309 Fab light chain


Mass: 23204.697 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#3: Antibody BD-604 Fab heavy chain


Mass: 23352.223 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#4: Antibody BD-604 Fab light chain


Mass: 23304.783 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#5: Antibody S304 Fab haavy chain


Mass: 23729.389 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#6: Antibody S304 Fab light chain


Mass: 23369.947 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)

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Protein / Sugars , 2 types, 2 molecules M

#7: Protein Spike protein S1


Mass: 23775.982 Da / Num. of mol.: 1 / Fragment: RBD
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2
Gene: S, 2 / Variant: Omicron BA.1 / Production host: Homo sapiens (human) / References: UniProt: P0DTC2
#8: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 570.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-1-2/a4-b1_a6-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE

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Details

Has ligand of interestY
Has protein modificationY

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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-IDSource
1BD604 Fab, S309 Fab and S304 Fab complex with Omicron BA.1 RBDCOMPLEX#1-#70MULTIPLE SOURCES
2BD604 Fab, S309 Fab and S304 FabCOMPLEX#1-#61RECOMBINANT
3Omicron BA.1 RBDCOMPLEX#71RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Severe acute respiratory syndrome coronavirus 22697049
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Homo sapiens (human)9606
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
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: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.19.2_4158: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.74 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 553923 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00510142
ELECTRON MICROSCOPYf_angle_d0.87813794
ELECTRON MICROSCOPYf_dihedral_angle_d12.8163621
ELECTRON MICROSCOPYf_chiral_restr0.0471545
ELECTRON MICROSCOPYf_plane_restr0.0071765

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