1IJS

CPV (STRAIN D) mutant A300D, complex (VIRAL COAT/DNA), VP2, PH=7.5, T=4 DEGREES C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å

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This is version 1.4 of the entry. See complete history


Literature

Structural analysis of a mutation in canine parvovirus which controls antigenicity and host range.

Llamas-Saiz, A.L.Agbandje-McKenna, M.Parker, J.S.Wahid, A.T.Parrish, C.R.Rossmann, M.G.

(1996) Virology 225: 65-71

  • DOI: https://doi.org/10.1006/viro.1996.0575
  • Primary Citation of Related Structures:  
    1IJS

  • PubMed Abstract: 

    A single mutation in canine parvovirus (CPV) of VP2 residue 300 from alanine to aspartic acid causes a loss of canine host range and alters the antigenic properties of the virus. The three-dimensional structure of this mutant has been solved to 3.25 A resolution. Crystals of full particles were triclinic, with cell dimensions of a = 267.6, b = 268.5, c = 274.3 A. alpha = 61.9, beta = 62.6, and gamma = 60.2 degrees. The native structure of CPV was used as an initial model. Phases were improved by real-space electron density averaging. In spite of the relative low percentage of observed reflections (32.5% of the data between 15.0 and 3.25 A resolution), the presence of 60-fold noncrystallographic redundancy allowed the averaging procedure to converge smoothly. The mutant aspartic acid at residue 300 forms a salt bridge with Arg81 in an icosahedrally threefold-related subunit, inducing local changes within the antigenic site B on the CPV surface. In addition, the loop between residues 359 and 374 adopts a conformation similar to that displayed by feline panleukopenia virus. The ability of the Ala300-->Asp mutant to evade antibody binding can be associated with the change of charge distribution and structure in the antigenic binding site. The variation in host range behavior may be due to the increased stability as a result of formation of the salt bridge between adjacent subunits.


  • Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907-1392, USA.


Macromolecules

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (PARVOVIRUS COAT PROTEIN)C [auth P]584Canine parvovirusMutation(s): 1 
UniProt
Find proteins for P17455 (Canine parvovirustype 2 (isolate Dog/United States/CPV-d/1988))
Explore P17455 
Go to UniProtKB:  P17455
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP17455
Sequence Annotations
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  • Reference Sequence

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Entity ID: 1
MoleculeChains LengthOrganismImage
DNA (5'-D(*CP*CP*AP*CP*CP*CP*CP*AP*A)-3')A [auth N]9Canine parvovirus
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains LengthOrganismImage
DNA (5'-D(*AP*C)-3')B [auth A]2Canine parvovirus
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 267.6α = 61.9
b = 268.5β = 62.6
c = 274.3γ = 60.2
Software Package:
Software NamePurpose
PURDUEdata collection
PURDUEdata reduction
PURDUEmodel building
NONErefinement
PURDUEdata scaling
PURDUEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-12-23
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-11-02
    Changes: Structure summary
  • Version 1.4: 2021-11-03
    Changes: Database references