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- PDB-8tco: HCMV Trimer in complex with CS2it1p2_F7K Fab and CS4tt1p1_E3K Fab -

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Basic information

Entry
Database: PDB / ID: 8tco
TitleHCMV Trimer in complex with CS2it1p2_F7K Fab and CS4tt1p1_E3K Fab
Components
  • (CS2it1p2_F7K Fab ...) x 2
  • (CS4tt1p1_E3K Fab ...) x 2
  • (Envelope glycoprotein ...) x 3
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / Virus / glycoprotein / antibody / VIRAL PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


host cell endosome / host cell Golgi apparatus / entry receptor-mediated virion attachment to host cell / fusion of virus membrane with host plasma membrane / viral envelope / symbiont entry into host cell / host cell plasma membrane / virion membrane / membrane
Similarity search - Function
Herpesvirus UL74, glycoprotein / Herpes UL74 glycoproteins / Cytomegalovirus glycoprotein L / Cytomegalovirus glycoprotein L / Betaherpesvirus glycoprotein L (gL) domain profile. / Herpesvirus glycoprotein H main domain / Herpesvirus glycoprotein H / Herpesvirus glycoprotein H, C-terminal / Herpesvirus glycoprotein H, C-terminal domain superfamily / Herpesvirus glycoprotein H C-terminal domain ...Herpesvirus UL74, glycoprotein / Herpes UL74 glycoproteins / Cytomegalovirus glycoprotein L / Cytomegalovirus glycoprotein L / Betaherpesvirus glycoprotein L (gL) domain profile. / Herpesvirus glycoprotein H main domain / Herpesvirus glycoprotein H / Herpesvirus glycoprotein H, C-terminal / Herpesvirus glycoprotein H, C-terminal domain superfamily / Herpesvirus glycoprotein H C-terminal domain / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Envelope glycoprotein H / Envelope glycoprotein O / Envelope glycoprotein L
Similarity search - Component
Biological speciesHuman betaherpesvirus 5
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsGoldsmith, J.A. / McLellan, J.S.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Immunity / Year: 2023
Title: Single-cell analysis of memory B cells from top neutralizers reveals multiple sites of vulnerability within HCMV Trimer and Pentamer.
Authors: Matthias Zehner / Mira Alt / Artem Ashurov / Jory A Goldsmith / Rebecca Spies / Nina Weiler / Justin Lerma / Lutz Gieselmann / Dagmar Stöhr / Henning Gruell / Eric P Schultz / Christoph ...Authors: Matthias Zehner / Mira Alt / Artem Ashurov / Jory A Goldsmith / Rebecca Spies / Nina Weiler / Justin Lerma / Lutz Gieselmann / Dagmar Stöhr / Henning Gruell / Eric P Schultz / Christoph Kreer / Linda Schlachter / Hanna Janicki / Kerstin Laib Sampaio / Cora Stegmann / Michelle D Nemetchek / Sabrina Dähling / Leon Ullrich / Ulf Dittmer / Oliver Witzke / Manuel Koch / Brent J Ryckman / Ramin Lotfi / Jason S McLellan / Adalbert Krawczyk / Christian Sinzger / Florian Klein /
Abstract: Human cytomegalovirus (HCMV) can cause severe diseases in fetuses, newborns, and immunocompromised individuals. Currently, no vaccines are approved, and treatment options are limited. Here, we ...Human cytomegalovirus (HCMV) can cause severe diseases in fetuses, newborns, and immunocompromised individuals. Currently, no vaccines are approved, and treatment options are limited. Here, we analyzed the human B cell response of four HCMV top neutralizers from a cohort of 9,000 individuals. By single-cell analyses of memory B cells targeting the pentameric and trimeric HCMV surface complexes, we identified vulnerable sites on the shared gH/gL subunits as well as complex-specific subunits UL and gO. Using high-resolution cryogenic electron microscopy, we revealed the structural basis of the neutralization mechanisms of antibodies targeting various binding sites. Moreover, we identified highly potent antibodies that neutralized a broad spectrum of HCMV strains, including primary clinical isolates, that outperform known antibodies used in clinical trials. Our study provides a deep understanding of the mechanisms of HCMV neutralization and identifies promising antibody candidates to prevent and treat HCMV infection.
History
DepositionJul 2, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 9, 2023Provider: repository / Type: Initial release
Revision 1.1Aug 14, 2024Group: Data collection / Database references / Structure summary
Category: audit_author / chem_comp_atom ...audit_author / chem_comp_atom / chem_comp_bond / citation / citation_author / em_admin / em_author_list
Item: _audit_author.name / _citation.country ..._audit_author.name / _citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _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 / _em_admin.last_update / _em_author_list.author
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Envelope glycoprotein H
B: Envelope glycoprotein L
C: Envelope glycoprotein O
D: CS4tt1p1_E3K Fab light chain
E: CS4tt1p1_E3K Fab heavy chain
F: CS2it1p2_F7K Fab heavy chain
G: CS2it1p2_F7K Fab light chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)269,73117
Polymers266,5857
Non-polymers3,14610
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Envelope glycoprotein ... , 3 types, 3 molecules ABC

#1: Protein Envelope glycoprotein H


Mass: 84538.617 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human betaherpesvirus 5 / Gene: UL75 / Production host: Homo sapiens (human) / References: UniProt: Q69155
#2: Protein Envelope glycoprotein L / gL


Mass: 29877.336 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human betaherpesvirus 5 / Gene: UL115, gL, HHV5gp102 / Production host: Homo sapiens (human) / References: UniProt: Q8JP80
#3: Protein Envelope glycoprotein O


Mass: 54299.551 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human betaherpesvirus 5 / Gene: UL74 / Production host: Homo sapiens (human) / References: UniProt: Q71DI2

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Antibody , 4 types, 4 molecules DEFG

#4: Antibody CS4tt1p1_E3K Fab light chain


Mass: 23793.338 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 CS4tt1p1_E3K Fab heavy chain


Mass: 24053.139 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 CS2it1p2_F7K Fab heavy chain


Mass: 24415.340 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#7: Antibody CS2it1p2_F7K Fab light chain


Mass: 25607.836 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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Sugars , 3 types, 10 molecules

#8: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}LINUCSPDB-CARE
#9: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#10: 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


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C8H15NO6
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

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Details

Has ligand of interestN
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

ComponentName: HCMV Trimer in complex with CS2it1p2_F7K Fab and CS4tt1p1_E3K Fab
Type: COMPLEX / Entity ID: #1-#7 / Source: MULTIPLE SOURCES
Source (natural)Organism: Human betaherpesvirus 5
Source (recombinant)Organism: Homo sapiens (human)
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

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 49 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 376687 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 67.4 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.002713543
ELECTRON MICROSCOPYf_angle_d0.601818422
ELECTRON MICROSCOPYf_chiral_restr0.04372123
ELECTRON MICROSCOPYf_plane_restr0.00562336
ELECTRON MICROSCOPYf_dihedral_angle_d5.17751903

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