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Open data
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Basic information
| Entry | Database: PDB / ID: 9dix | ||||||
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| Title | HCMV gH/UL116/UL141 3-mer complex, ectodomain | ||||||
Components |
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Keywords | VIRAL PROTEIN / Surface protein complex | ||||||
| Function / homology | Function and homology informationsymbiont-mediated perturbation of host natural killer cell mediated immune response / host cell endosome / host cell endoplasmic reticulum membrane / 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 | ||||||
| Biological species | ![]() Human betaherpesvirus 5 | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.51 Å | ||||||
Authors | Norris, M.J. / Benedict, C.A. / Kamil, J.P. / Saphire, E.O. | ||||||
| Funding support | United States, 1items
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Citation | Journal: bioRxiv / Year: 2024Title: A noncanonical glycoprotein H complex enhances cytomegalovirus entry. Authors: Michael J Norris / Lauren A Henderson / Mohammed N A Siddiquey / Jieyun Yin / Kwangsun Yoo / Simon Brunel / Erica Ollmann Saphire / Chris A Benedict / Jeremy P Kamil / ![]() Abstract: Human cytomegalovirus (HCMV) causes severe birth defects, lifelong health complications, and $4 billion in annual costs in the United States alone. A major challenge in vaccine design is the ...Human cytomegalovirus (HCMV) causes severe birth defects, lifelong health complications, and $4 billion in annual costs in the United States alone. A major challenge in vaccine design is the incomplete understanding of the diverse protein complexes the virus uses to infect cells. In , the gH/gL glycoprotein heterodimer is expected to be a basal element of virion cell entry machinery. For HCMV, gH/gL forms a "trimer" with gO and a "pentamer" with UL128, UL130, and UL131A, with each complex binding distinct receptors to enter varied cell types. Here, we reveal a third glycoprotein complex, abundant in HCMV virions, which significantly enhances infection of endothelial cells. In this "3-mer" complex, gH, without gL, associates with UL116 and UL141, an immunoevasin previously known to function in an intracellular role. Cryo-EM reveals the virion-surface 3-mer is structurally unique among gH complexes, with gH-only scaffolding, UL141-mediated dimerization and a heavily glycosylated UL116 cap. Given that antibodies directed at gH and UL141 each can restrict HCMV replication, our work highlights this virion surface complex as a new target for vaccines and antiviral therapies. | ||||||
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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 | 9dix.cif.gz | 740.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9dix.ent.gz | 506.9 KB | Display | PDB format |
| PDBx/mmJSON format | 9dix.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/di/9dix ftp://data.pdbj.org/pub/pdb/validation_reports/di/9dix | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 46920MC ![]() 9diyC 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 , 3 types, 6 molecules ADBECF
| #1: Protein | Mass: 77497.164 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human betaherpesvirus 5 / Strain: TB40-BAC4 / Gene: UL75 / Cell line (production host): Freestyle 293F / Production host: Homo sapiens (human) / References: UniProt: A8T7F0#2: Protein | Mass: 31039.045 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human betaherpesvirus 5 / Strain: Merlin / Gene: UL141 / Cell line (production host): Freestyle 293F / Production host: Homo sapiens (human) / References: UniProt: Q6RJQ3#3: Protein | Mass: 35321.906 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Human betaherpesvirus 5 / Strain: TB40-BAC4 / Gene: UL116 / Cell line (production host): Freestyle 293F / Production host: Homo sapiens (human) / References: UniProt: A8T7J8 |
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-Sugars , 3 types, 10 molecules 
| #4: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Sugar | ChemComp-NAG / |
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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: HCMV gH/UL116/UL141 3-mer complex / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() Human betaherpesvirus 5 |
| Source (recombinant) | Organism: Homo sapiens (human) / Cell: Freestyle 293F |
| Buffer solution | pH: 8 |
| Specimen | Conc.: 0.8 mg/ml / 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: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
| Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.21.1_5286 / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.51 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 119525 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| Displacement parameters | Biso mean: 137.95 Å2 | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi





Human betaherpesvirus 5
United States, 1items
Citation



PDBj
Homo sapiens (human)
FIELD EMISSION GUN