1SVF

PARAMYXOVIRUS SV5 FUSION PROTEIN CORE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural basis for paramyxovirus-mediated membrane fusion.

Baker, K.A.Dutch, R.E.Lamb, R.A.Jardetzky, T.S.

(1999) Mol Cell 3: 309-319

  • DOI: 10.1016/s1097-2765(00)80458-x
  • Primary Citation of Related Structures:  
    1SVF

  • PubMed Abstract: 
  • Paramyxoviruses are responsible for significant human mortality and disease worldwide, but the molecular mechanisms underlying their entry into host cells remain poorly understood. We have solved the crystal structure of a fragment of the simian parainfluenza virus 5 fusion protein (SV5 F), revealing a 96 A long coiled coil surrounded by three antiparallel helices ...

    Paramyxoviruses are responsible for significant human mortality and disease worldwide, but the molecular mechanisms underlying their entry into host cells remain poorly understood. We have solved the crystal structure of a fragment of the simian parainfluenza virus 5 fusion protein (SV5 F), revealing a 96 A long coiled coil surrounded by three antiparallel helices. This structure places the fusion and transmembrane anchor of SV5 F in close proximity with a large intervening domain at the opposite end of the coiled coil. Six amino acids, potentially part of the fusion peptide, form a segment of the central coiled coil, suggesting that this structure extends into the membrane. Deletion mutants of SV5 F indicate that putative flexible tethers between the coiled coil and the viral membrane are dispensable for fusion. The lack of flexible tethers may couple a final conformational change in the F protein directly to the fusion of two bilayers.


    Organizational Affiliation

    Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University, Evanston, Illinois 60208-3500, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (FUSION GLYCOPROTEIN)A, C64Simian virus 5 (strain W3)Mutation(s): 1 
Gene Names: FUSION PROTEINF
Membrane Entity: Yes 
UniProt
Find proteins for P04849 (Parainfluenza virus 5 (strain W3))
Explore P04849 
Go to UniProtKB:  P04849
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04849
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (FUSION GLYCOPROTEIN)B, D38Simian virus 5 (strain W3)Mutation(s): 0 
Gene Names: FUSION PROTEINF
Membrane Entity: Yes 
UniProt
Find proteins for P04849 (Parainfluenza virus 5 (strain W3))
Explore P04849 
Go to UniProtKB:  P04849
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04849
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 
  • Space Group: P 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.6α = 90
b = 41.6β = 90
c = 95.6γ = 120
Software Package:
Software NamePurpose
RSPSmodel building
SHARPphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
RSPSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-03-26
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2021-11-03
    Changes: Database references, Derived calculations