Biological Assembly 1  

 3D View: Structure

Global Symmetry: Icosahedral - I  (3D View)
Global Stoichiometry: Homo 240-mer - A240 

Biological assembly 1 assigned by authors and generated by (software)

Macromolecule Content

• Total Structure Weight: 65.01 kDa 
• Atom Count: 4563 
• Modelled Residue Count: 596 
• Deposited Residue Count: 596 
• Unique protein chains: 1

1DYL

9 ANGSTROM RESOLUTION CRYO-EM RECONSTRUCTION STRUCTURE OF SEMLIKI FOREST VIRUS (SFV) AND FITTING OF THE CAPSID PROTEIN STRUCTURE IN THE EM DENSITY

• DOI: 10.2210/pdb1DYL/pdb
• EMDataResource: EMD-1015

• Classification: VIRUS/VIRAL PROTEIN
• Organism(s): Semliki Forest virus
• Mutation(s): No 


• Deposited: 2000-02-02 Released: 2000-08-18 
• Deposition Author(s): Mancini, E.J., Clarke, M., Gowen, B.E., Rutten, T., Fuller, S.D.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 9.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-Electron Microscopy Reveals the Functional Organization of an Enveloped Virus, Semliki Forest Virus.

Mancini, E.J., Clarke, M., Gowen, B.E., Rutten, T., Fuller, S.D.

(2000) Mol Cell 5: 255-266

• PubMed: 10882067 
• DOI: 10.1016/s1097-2765(00)80421-9
• Primary Citation of Related Structures:  
  1DYL


• PubMed Abstract: 
  

Semliki Forest virus serves as a paradigm for membrane fusion and assembly. Our icosahedral reconstruction combined 5276 particle images from 48 cryo-electron micrographs and determined the virion structure to 9 A resolution. The improved resolution of this map reveals an N-terminal arm linking capsid subunits and defines the spike-capsid interaction sites. It illustrates the paired helical nature of the transmembrane segments and the elongated structures connecting them to the spike projecting domains. A 10 A diameter density in the fusion protein lines the cavity at the center of the spike. These clearly visible features combine with the variation in order between the layers to provide a framework for understanding the structural changes during the life cycle of an enveloped virus.

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Organizational Affiliation: 

The Structural Biology Programme, European Molecular Biology Laboratory, Heidelberg, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NUCLEOCAPSID PROTEIN	A, B, C, D	149	Semliki Forest virus	Mutation(s): 0  EC: 3.4.21.90
Find proteins for P03315 (Semliki forest virus) Explore P03315  Go to UniProtKB:  P03315

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 9.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-02-02 
• Released Date: 2000-08-18 
Deposition Author(s): Mancini, E.J., Clarke, M., Gowen, B.E., Rutten, T., Fuller, S.D.

Revision History  

• Version 1.0: 2000-08-18
  Type: Initial release
  
• Version 1.1: 2011-05-07
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-08-30
  Changes: Data collection, Experimental preparation, Refinement description
• Version 1.4: 2018-01-31
  Changes: Data processing, Other
• Version 1.5: 2019-12-18
  Changes: Other