6V7B

Cryo-EM reconstruction of Pyrobaculum filamentous virus 2 (PFV2)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

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This is version 1.2 of the entry. See complete history


Literature

Structure of a filamentous virus uncovers familial ties within the archaeal virosphere.

Wang, F.Baquero, D.P.Su, Z.Osinski, T.Prangishvili, D.Egelman, E.H.Krupovic, M.

(2020) Virus Evol 6: veaa023-veaa023

  • DOI: 10.1093/ve/veaa023
  • Primary Citation of Related Structures:  
    6V7B

  • PubMed Abstract: 
  • Viruses infecting hyperthermophilic archaea represent one of the most enigmatic parts of the global virome, with viruses from different families showing no genomic relatedness to each other or to viruses of bacteria and eukaryotes. Tristromaviruses, which build enveloped filamentous virions and infect hyperthermophilic neutrophiles of the order Thermoproteales, represent one such enigmatic virus families ...

    Viruses infecting hyperthermophilic archaea represent one of the most enigmatic parts of the global virome, with viruses from different families showing no genomic relatedness to each other or to viruses of bacteria and eukaryotes. Tristromaviruses, which build enveloped filamentous virions and infect hyperthermophilic neutrophiles of the order Thermoproteales, represent one such enigmatic virus families. They do not share genes with viruses from other families and have been believed to represent an evolutionarily independent virus lineage. A cryo-electron microscopic reconstruction of the tristromavirus Pyrobaculum filamentous virus 2 at 3.4 Å resolution shows that the virion is constructed from two paralogous major capsid proteins (MCP) which transform the linear dsDNA genome of the virus into A-form by tightly wrapping around it. Unexpectedly, the two MCP are homologous to the capsid proteins of other filamentous archaeal viruses, uncovering a deep evolutionary relationship within the archaeal virosphere.


    Organizational Affiliation

    Archaeal Virology Unit, Department of Microbiology, Institut Pasteur, 25 Rue du Dr Roux, Paris 75015, France.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Structural protein VP1129Pyrobaculum filamentous virus 1Mutation(s): 0 
UniProt
Find proteins for A0A140F3K6 (Pyrobaculum filamentous virus 1)
Explore A0A140F3K6 
Go to UniProtKB:  A0A140F3K6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A140F3K6
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Structural protein VP2145Pyrobaculum filamentous virus 1Mutation(s): 0 
UniProt
Find proteins for A0A140F3K7 (Pyrobaculum filamentous virus 1)
Explore A0A140F3K7 
Go to UniProtKB:  A0A140F3K7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A140F3K7
Protein Feature View
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  • Reference Sequence
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Entity ID: 1
MoleculeChainsLengthOrganismImage
A-DNAA [auth 1]323Pyrobaculum filamentous virus 1
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsLengthOrganismImage
A-DNAB [auth 2]323Pyrobaculum filamentous virus 1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM122510

Revision History  (Full details and data files)

  • Version 1.0: 2020-04-01
    Type: Initial release
  • Version 1.1: 2020-05-06
    Changes: Database references
  • Version 1.2: 2020-05-20
    Changes: Database references