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Open data
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Basic information
Entry | Database: PDB / ID: 6ncl | ||||||
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Title | Near-atomic structure of icosahedrally averaged PBCV-1 capsid | ||||||
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![]() | VIRUS / tape-measure protein / minor capsid proteins / zip protein / giant virus | ||||||
Function / homology | ![]() viral capsid / membrane => GO:0016020 / structural molecule activity / membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | ||||||
![]() | Fang, Q. / Rossmann, M.G. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Near-atomic structure of a giant virus. Authors: Qianglin Fang / Dongjie Zhu / Irina Agarkova / Jagat Adhikari / Thomas Klose / Yue Liu / Zhenguo Chen / Yingyuan Sun / Michael L Gross / James L Van Etten / Xinzheng Zhang / Michael G Rossmann / ![]() ![]() Abstract: Although the nucleocytoplasmic large DNA viruses (NCLDVs) are one of the largest group of viruses that infect many eukaryotic hosts, the near-atomic resolution structures of these viruses have ...Although the nucleocytoplasmic large DNA viruses (NCLDVs) are one of the largest group of viruses that infect many eukaryotic hosts, the near-atomic resolution structures of these viruses have remained unknown. Here we describe a 3.5 Å resolution icosahedrally averaged capsid structure of Paramecium bursaria chlorella virus 1 (PBCV-1). This structure consists of 5040 copies of the major capsid protein, 60 copies of the penton protein and 1800 minor capsid proteins of which there are 13 different types. The minor capsid proteins form a hexagonal network below the outer capsid shell, stabilizing the capsid by binding neighboring capsomers together. The size of the viral capsid is determined by a tape-measure, minor capsid protein of which there are 60 copies in the virion. Homologs of the tape-measure protein and some of the other minor capsid proteins exist in other NCLDVs. Thus, a similar capsid assembly pathway might be used by other NCLDVs. | ||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 6.9 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 0436MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
| x 60
2 |
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3 | ![]()
| x 5
4 | ![]()
| x 6
5 | ![]()
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Symmetry | Point symmetry: (Schoenflies symbol: I (icosahedral)) |
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Components
-Protein , 15 types, 115 molecules a0a1a2a3a4a5a6a7a8a9b0b1b2b3b4b5b7b8c0c1l5b6c2c3c4c5c6c7c8c9...
#1: Protein | Mass: 38502.719 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() | ||||||||||||||||||||||||
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#2: Protein | Mass: 23407.564 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() | ||||||||||||||||||||||||
#3: Protein | Mass: 31223.600 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #4: Protein | | Mass: 29505.855 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #5: Protein | | Mass: 24036.729 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #6: Protein | | Mass: 18281.664 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #7: Protein | | Mass: 17715.475 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #8: Protein | | Mass: 16455.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #9: Protein | Mass: 23322.656 Da / Num. of mol.: 12 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #10: Protein | | Mass: 63888.082 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #11: Protein | Mass: 20637.311 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #12: Protein | Mass: 19116.688 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #13: Protein | | Mass: 19226.947 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #14: Protein | Mass: 48199.625 Da / Num. of mol.: 84 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #15: Protein | | Mass: 11070.830 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-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: Paramecium bursaria Chlorella virus 1 / Type: VIRUS / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: ![]() ![]() |
Details of virus | Empty: NO / Enveloped: NO / Isolate: OTHER / Type: VIRION |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Instrument: GATAN CRYOPLUNGE 3 / Cryogen name: ETHANE / Humidity: 85 % |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 24.4 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Symmetry | Point symmetry: I (icosahedral) |
3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 13000 / Symmetry type: POINT |