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- PDB-8y6v: Near-atomic structure of icosahedrally averaged jumbo bacteriopha... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8y6v | |||||||||||||||
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Title | Near-atomic structure of icosahedrally averaged jumbo bacteriophage PhiKZ capsid | |||||||||||||||
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![]() | VIRUS / phiKZ / capsid protein / viral assembly / Pseudomonas aeruginosa / jumbo phage | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||||||||
![]() | Yang, Y. / Shao, Q. / Guo, M. / Han, L. / Zhao, X. / Wang, A. / Li, X. / Wang, B. / Pan, J. / Chen, Z. ...Yang, Y. / Shao, Q. / Guo, M. / Han, L. / Zhao, X. / Wang, A. / Li, X. / Wang, B. / Pan, J. / Chen, Z. / Fokine, A. / Sun, L. / Fang, Q. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Capsid structure of bacteriophage ΦKZ provides insights into assembly and stabilization of jumbo phages. Authors: Yashan Yang / Qianqian Shao / Mingcheng Guo / Lin Han / Xinyue Zhao / Aohan Wang / Xiangyun Li / Bo Wang / Ji-An Pan / Zhenguo Chen / Andrei Fokine / Lei Sun / Qianglin Fang / ![]() ![]() Abstract: Jumbo phages are a group of tailed bacteriophages with large genomes and capsids. As a prototype of jumbo phage, ΦKZ infects Pseudomonas aeruginosa, a multi-drug-resistant (MDR) opportunistic ...Jumbo phages are a group of tailed bacteriophages with large genomes and capsids. As a prototype of jumbo phage, ΦKZ infects Pseudomonas aeruginosa, a multi-drug-resistant (MDR) opportunistic pathogen leading to acute or chronic infection in immunocompromised individuals. It holds potential to be used as an antimicrobial agent and as a model for uncovering basic phage biology. Although previous low-resolution structural studies have indicated that jumbo phages may have more complicated capsid structures than smaller phages such as HK97, the detailed structures and the assembly mechanism of their capsids remain largely unknown. Here, we report a 3.5-Å-resolution cryo-EM structure of the ΦKZ capsid. The structure unveiled ten minor capsid proteins, with some decorating the outer surface of the capsid and the others forming a complex network attached to the capsid's inner surface. This network seems to play roles in driving capsid assembly and capsid stabilization. Similar mechanisms of capsid assembly and stabilization are probably employed by many other jumbo viruses. | |||||||||||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 2.9 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 39002 ![]() 38845 ![]() 38846 ![]() 38848 C: citing same article ( M: map data used to model this data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 11 types, 42 molecules DBEFGHKLMJabcdefghijklmnopqrst...
#1: Protein | Mass: 36511.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||||||||||||
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#2: Protein | Mass: 29713.783 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||||||||||||
#3: Protein | Mass: 16438.799 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #4: Protein | | Mass: 48893.793 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #5: Protein | | Mass: 20817.568 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #6: Protein | Mass: 47656.105 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #7: Protein | | Mass: 20253.990 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #8: Protein | Mass: 83022.883 Da / Num. of mol.: 27 / Source method: isolated from a natural source / Source: (natural) ![]() #9: Protein | Mass: 57705.137 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #10: Protein | | Mass: 25300.836 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #11: Protein | | Mass: 13427.183 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: Phikzvirus phiKZ / Type: VIRUS / Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: ![]() |
Details of virus | Empty: NO / Enveloped: NO / Isolate: STRAIN / Type: VIRION |
Natural host | Organism: Pseudomonas aeruginosa |
Virus shell | Triangulation number (T number): 27 |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid type: EMS Lacey Carbon |
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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 64000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 30 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 903900 / Symmetry type: POINT |