8B3O

CryoEM structure of the pointy tip (proteins pIII/pVI/pVIII) from the f1 filamentous bacteriophage


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.97 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Cryo-electron microscopy of the f1 filamentous phage reveals insights into viral infection and assembly.

Conners, R.Leon-Quezada, R.I.McLaren, M.Bennett, N.J.Daum, B.Rakonjac, J.Gold, V.A.M.

(2023) Nat Commun 14: 2724-2724

  • DOI: https://doi.org/10.1038/s41467-023-37915-w
  • Primary Citation of Related Structures:  
    8B3O, 8B3P, 8B3Q

  • PubMed Abstract: 

    Phages are viruses that infect bacteria and dominate every ecosystem on our planet. As well as impacting microbial ecology, physiology and evolution, phages are exploited as tools in molecular biology and biotechnology. This is particularly true for the Ff (f1, fd or M13) phages, which represent a widely distributed group of filamentous viruses. Over nearly five decades, Ffs have seen an extraordinary range of applications, yet the complete structure of the phage capsid and consequently the mechanisms of infection and assembly remain largely mysterious. In this work, we use cryo-electron microscopy and a highly efficient system for production of short Ff-derived nanorods to determine a structure of a filamentous virus including the tips. We show that structure combined with mutagenesis can identify phage domains that are important in bacterial attack and for release of new progeny, allowing new models to be proposed for the phage lifecycle.


  • Organizational Affiliation

    Faculty of Health and Life Sciences, University of Exeter, Exeter, EX4 4QD, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein G8P50Enterobacteria phage f1Mutation(s): 1 
Gene Names: VIII
UniProt
Find proteins for P69540 (Enterobacteria phage f1)
Explore P69540 
Go to UniProtKB:  P69540
Entity Groups  
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UniProt GroupP69540
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Head virion protein G6PE [auth AAA],
FA [auth DDD],
N [auth BBB],
OA [auth EEE],
W [auth CCC]
112Enterobacteria phage f1Mutation(s): 0 
Gene Names: VI
UniProt
Find proteins for P69531 (Enterobacteria phage f1)
Explore P69531 
Go to UniProtKB:  P69531
Entity Groups  
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UniProt GroupP69531
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Attachment protein G3PF [auth FFF],
GA [auth III],
O [auth GGG],
PA [auth JJJ],
X [auth HHH]
406Enterobacteria phage f1Mutation(s): 0 
Gene Names: III
UniProt
Find proteins for P69169 (Enterobacteria phage f1)
Explore P69169 
Go to UniProtKB:  P69169
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP69169
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.97 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTREFMAC

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom210363/Z/18/Z

Revision History  (Full details and data files)

  • Version 1.0: 2023-05-24
    Type: Initial release