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Yorodumi- PDB-6w2e: Structures of Capsid and Capsid-Associated Tegument Complex insid... -
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-Basic information
Entry | Database: PDB / ID: 6w2e | |||||||||||||||
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Title | Structures of Capsid and Capsid-Associated Tegument Complex inside the Epstein-Barr Virus | |||||||||||||||
Components |
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Keywords | VIRAL PROTEIN / gamma-herpesvirus / EBV / CATC / Structural plasticity | |||||||||||||||
Function / homology | Function and homology information T=16 icosahedral viral capsid / viral genome packaging / viral tegument / viral capsid assembly / chromosome organization / viral process / viral penetration into host nucleus / viral capsid / host cell / symbiont-mediated perturbation of host ubiquitin-like protein modification ...T=16 icosahedral viral capsid / viral genome packaging / viral tegument / viral capsid assembly / chromosome organization / viral process / viral penetration into host nucleus / viral capsid / host cell / symbiont-mediated perturbation of host ubiquitin-like protein modification / ubiquitinyl hydrolase 1 / host cell cytoplasm / cysteine-type deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / symbiont entry into host cell / host cell nucleus / structural molecule activity / proteolysis / DNA binding Similarity search - Function | |||||||||||||||
Biological species | Epstein-Barr virus (Epstein-Barr virus) | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å | |||||||||||||||
Authors | Liu, W. / Cui, Y.X. / Wang, C.Y. / Li, Z.H. / Gong, D.Y. / Dai, X.H. / Bi, G.Q. / Sun, R. / Zhou, Z.H. | |||||||||||||||
Funding support | United States, 4items
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Citation | Journal: Nat Microbiol / Year: 2020 Title: Structures of capsid and capsid-associated tegument complex inside the Epstein-Barr virus. Authors: Wei Liu / Yanxiang Cui / Caiyan Wang / Zihang Li / Danyang Gong / Xinghong Dai / Guo-Qiang Bi / Ren Sun / Z Hong Zhou / Abstract: As the first discovered human cancer virus, Epstein-Barr virus (EBV) causes Burkitt's lymphoma and nasopharyngeal carcinoma. Isolating virions for determining high-resolution structures has been ...As the first discovered human cancer virus, Epstein-Barr virus (EBV) causes Burkitt's lymphoma and nasopharyngeal carcinoma. Isolating virions for determining high-resolution structures has been hindered by latency-a hallmark of EBV infection-and atomic structures are thus available only for recombinantly expressed EBV proteins. In the present study, by symmetry relaxation and subparticle reconstruction, we have determined near-atomic-resolution structures of the EBV capsid with an asymmetrically attached DNA-translocating portal and capsid-associated tegument complexes from cryogenic electron microscopy images of just 2,048 EBV virions obtained by chemical induction. The resulting atomic models reveal structural plasticity among the 20 conformers of the major capsid protein, 2 conformers of the small capsid protein (SCP), 4 conformers of the triplex monomer proteins and 2 conformers of the triplex dimer proteins. Plasticity reaches the greatest level at the capsid-tegument interfaces involving SCP and capsid-associated tegument complexes (CATC): SCPs crown pentons/hexons and mediate tegument protein binding, and CATCs bind and rotate all five periportal triplexes, but notably only about one peri-penton triplex. These results offer insights into the EBV capsid assembly and a mechanism for recruiting cell-regulating factors into the tegument compartment as 'cargoes', and should inform future anti-EBV strategies. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
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PDBx/mmCIF format | 6w2e.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6w2e.ent.gz | 1.1 MB | Display | PDB format |
PDBx/mmJSON format | 6w2e.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6w2e_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 6w2e_full_validation.pdf.gz | 1.5 MB | Display | |
Data in XML | 6w2e_validation.xml.gz | 185.8 KB | Display | |
Data in CIF | 6w2e_validation.cif.gz | 286.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/w2/6w2e ftp://data.pdbj.org/pub/pdb/validation_reports/w2/6w2e | HTTPS FTP |
-Related structure data
Related structure data | 21526MC 6w19C 6w2dC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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-Components
-Protein , 3 types, 10 molecules JKNOyzZade
#1: Protein | Mass: 154086.828 Da / Num. of mol.: 4 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P03226 #4: Protein | Mass: 338310.625 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 References: UniProt: P03186, ubiquitinyl hydrolase 1, Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases #5: Protein | Mass: 18169.100 Da / Num. of mol.: 4 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P14348 |
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-Capsid vertex component ... , 2 types, 3 molecules vwx
#2: Protein | Mass: 54527.941 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P03222 |
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#3: Protein | Mass: 62525.469 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P03233 |
-Triplex capsid protein ... , 2 types, 6 molecules fhkmpr
#6: Protein | Mass: 39231.539 Da / Num. of mol.: 2 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P03187 #7: Protein | Mass: 33654.039 Da / Num. of mol.: 4 / Source method: isolated from a natural source Source: (natural) Epstein-Barr virus (strain B95-8) (Epstein-Barr virus (strain B95-8)) Strain: B95-8 / References: UniProt: P25214 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Human herpesvirus 4 strain B95-8 / Type: VIRUS / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Human herpesvirus 4 strain B95-8 (Epstein-Barr virus (strain B95-8)) |
Details of virus | Empty: NO / Enveloped: YES / Isolate: STRAIN / Type: VIRION |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
-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 |
Image recording | Electron dose: 28 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 2305 / Symmetry type: POINT |