Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 16.34 kDa 
• Atom Count: 918 
• Modelled Residue Count: 114 
• Deposited Residue Count: 146 
• Unique protein chains: 1

1P65

Crystal structure of the nucleocapsid protein of porcine reproductive and respiratory syndrome virus (PRRSV)

• PDB DOI: 10.2210/pdb1P65/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Porcine reproductive and respiratory syndrome virus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-04-29 Released: 2003-11-25 
• Deposition Author(s): Doan, D.N.P., Dokland, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.267 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 

Literature

Structure of the nucleocapsid protein of porcine reproductive and respiratory syndrome virus.

Doan, D.N.P., Dokland, T.

(2003) Structure 11: 1445-1451

• PubMed: 14604534 
• DOI: 10.1016/j.str.2003.09.018
• Primary Citation of Related Structures:  
  1P65


• PubMed Abstract: 
  

Porcine reproductive and respiratory syndrome virus (PRRSV) is an enveloped RNA virus of the Arteriviridae family, genomically related to the coronaviruses. PRRSV is the causative agent of both severe and persistent respiratory disease and reproductive failure in pigs worldwide. The PRRSV virion contains a core made of the 123 amino acid nucleocapsid (N) protein, a product of the ORF7 gene. We have determined the crystal structure of the capsid-forming domain of N. The structure was solved to 2.6 A resolution by SAD methods using the anomalous signal from sulfur. The N protein exists in the crystal as a tight dimer forming a four-stranded beta sheet floor superposed by two long alpha helices and flanked by two N- and two C-terminal alpha helices. The structure of N represents a new class of viral capsid-forming domains, distinctly different from those of other known enveloped viruses, but reminiscent of the coat protein of bacteriophage MS2.

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Related Citations: 

• Cloning, expression, crystallization and preliminary X-ray diffraction analysis of the structural domain of the nucleocapsid N protein from porcine reproductive and respiratory syndrome virus
  Doan, D.N.P., Dokland, T.
  () To be published --: --

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Organizational Affiliation: 

Institute of Molecular and Cell Biology, 117609 Singapore, Singapore.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
nucleocapsid protein	A, B	73	Porcine reproductive and respiratory syndrome virus	Mutation(s): 0  Gene Names: orf7
UniProt
Find proteins for Q9YJI1 (Porcine reproductive and respiratory syndrome virus) Explore Q9YJI1  Go to UniProtKB:  Q9YJI1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.267 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.657	α = 90
b = 44.657	β = 90
c = 125.347	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-04-29 
• Released Date: 2003-11-25 
Deposition Author(s): Doan, D.N.P., Dokland, T.

Revision History  

• Version 1.0: 2003-11-25
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance