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Yorodumi- PDB-9dd7: Cryo-EM structure of neutralizing human antibody D48 in complex w... -
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Basic information
| Entry | Database: PDB / ID: 9dd7 | |||||||||||||||||||||
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| Title | Cryo-EM structure of neutralizing human antibody D48 in complex with HSV-1 glycoprotein B trimer gB-Ecto.516P.531E.DS | |||||||||||||||||||||
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Keywords | VIRAL PROTEIN / immune complex / neutralization / herpes fusogen | |||||||||||||||||||||
| Function / homology | Function and homology informationhost cell endosome / host cell Golgi apparatus / viral envelope / symbiont entry into host cell / virion attachment to host cell / host cell plasma membrane / membrane Similarity search - Function | |||||||||||||||||||||
| Biological species | ![]() Human alphaherpesvirus 1 (Herpes simplex virus type 1) Homo sapiens (human) | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.1 Å | |||||||||||||||||||||
Authors | Roark, R.S. / Shapiro, L. / Kwong, P.D. | |||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Microbiol / Year: 2025Title: Prefusion structure, evasion and neutralization of HSV-1 glycoprotein B. Authors: Ryan S Roark / Andrew J Schaub / Wei Shi / Maple Wang / Fabiana A Bahna / Jordan E Becker / Andrea Biju / Sue Chong / Haijuan Du / Yicheng Guo / Hsiang Hong / Phinikoula S Katsamba / Seetha ...Authors: Ryan S Roark / Andrew J Schaub / Wei Shi / Maple Wang / Fabiana A Bahna / Jordan E Becker / Andrea Biju / Sue Chong / Haijuan Du / Yicheng Guo / Hsiang Hong / Phinikoula S Katsamba / Seetha M Mannepalli / Adam S Olia / Li Ou / Sarah K Rubin / Yosef Sabo / Mehin Suleiman / Malcolm L Wells / Baoshan Zhang / Cheng Cheng / Anum Glasgow / David D Ho / Yaoxing Huang / Theodore C Pierson / Reda Rawi / Tongqing Zhou / Lawrence Shapiro / Peter D Kwong / ![]() Abstract: Glycoprotein B (gB) refolds between prefusion and postfusion conformations to facilitate herpesvirus entry into host cells. However, the isolation of prefusion-specific neutralizing antibodies, ...Glycoprotein B (gB) refolds between prefusion and postfusion conformations to facilitate herpesvirus entry into host cells. However, the isolation of prefusion-specific neutralizing antibodies, effective against other viral entry machines, has been challenging. Here we describe stabilization of the prefusion gB ectodomain from herpes simplex virus 1 (HSV-1), determine ectodomain structures at 2.9- to 4.1-Å resolution using cryogenic electron microscopy (cryo-EM) and isolate a prefusion-specific gB-neutralizing antibody termed WS.HSV-1.24. Murine immunization with gB stabilized in the prefusion conformation induced high titres of antibodies binding to both prefusion and postfusion gB, but-most notably-without measurable serum neutralization. Accessibility analysis revealed iso-surface exposure, with accessible surfaces on prefusion HSV-1 gB also exposed on postfusion gB. Structural analysis suggested substantial plasticity, with regions that refolded between pre- and postfusion conformations relegated to domain interfaces with limited accessibility; indeed, WS.HSV-1.24 recognized a domain-interface refolding region to facilitate neutralization. We propose that prefusion HSV-1 gB evades neutralization by most antibodies through an iso-surface display that is coupled to structural plasticity. | |||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9dd7.cif.gz | 402.4 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9dd7.ent.gz | 324.5 KB | Display | PDB format |
| PDBx/mmJSON format | 9dd7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9dd7_validation.pdf.gz | 1.8 MB | Display | wwPDB validaton report |
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| Full document | 9dd7_full_validation.pdf.gz | 1.8 MB | Display | |
| Data in XML | 9dd7_validation.xml.gz | 66.5 KB | Display | |
| Data in CIF | 9dd7_validation.cif.gz | 102.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dd/9dd7 ftp://data.pdbj.org/pub/pdb/validation_reports/dd/9dd7 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 46759MC ![]() 9dd6C ![]() 9dd8C ![]() 9ddaC ![]() 9ddcC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 1 types, 3 molecules EFG
| #1: Protein | Mass: 90326.195 Da / Num. of mol.: 3 / Fragment: HSV-1 gB ectodomain / Mutation: H516P,L531E Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human alphaherpesvirus 1 (Herpes simplex virus type 1)Gene: UL27 / Production host: Homo sapiens (human) / References: UniProt: A1Z0P6 |
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-Antibody , 2 types, 6 molecules IJKMNO
| #2: Antibody | Mass: 13317.124 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)#3: Antibody | Mass: 11716.142 Da / Num. of mol.: 3 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, 9 molecules 
| #4: Polysaccharide | Source method: isolated from a genetically manipulated source #5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Sugar | |
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-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: D48 Fab in complex with HSV-1 gB trimer / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 73388 / Symmetry type: POINT |
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About Yorodumi




Human alphaherpesvirus 1 (Herpes simplex virus type 1)
Homo sapiens (human)
United States, 1items
Citation








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FIELD EMISSION GUN