4XAL

Crystal structure of the conserved core domain of VP22 from HSV-1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

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Literature

VP22 core domain from Herpes simplex virus 1 reveals a surprising structural conservation in both the Alpha- and Gammaherpesvirinae subfamilies.

Hew, K.Dahlroth, S.L.Pan, L.X.Cornvik, T.Nordlund, P.

(2015) J Gen Virol 96: 1436-1445

  • DOI: 10.1099/vir.0.000078
  • Primary Citation of Related Structures:  
    4XAL

  • PubMed Abstract: 
  • The viral tegument is a layer of proteins between the herpesvirus capsid and its outer envelope. According to phylogenetic studies, only a third of these proteins are conserved amongst the three subfamilies (Alpha-, Beta- and Gammaherpesvirinae) of t ...

    The viral tegument is a layer of proteins between the herpesvirus capsid and its outer envelope. According to phylogenetic studies, only a third of these proteins are conserved amongst the three subfamilies (Alpha-, Beta- and Gammaherpesvirinae) of the family Herpesviridae. Although some of these tegument proteins have been studied in more detail, the structure and function of the majority of them are still poorly characterized. VP22 from Herpes simplex virus 1 (subfamily Alphaherpesvirinae) is a highly interacting tegument protein that has been associated with tegument assembly. We have determined the crystal structure of the conserved core domain of VP22, which reveals an elongated dimer with several potential protein-protein interaction regions and a peptide-binding site. The structure provides us with the structural basics to understand the numerous functional mutagenesis studies of VP22 found in the literature. It also establishes an unexpected structural homology to the tegument protein ORF52 from Murid herpesvirus 68 (subfamily Gammaherpesvirinae). Homologues for both VP22 and ORF52 have been identified in their respective subfamilies. Although there is no obvious sequence overlap in the two subfamilies, this structural conservation provides compelling structural evidence for shared ancestry and functional conservation.


    Organizational Affiliation

    Division of Structural Biology and Biochemistry, School of Biological Sciences, Nanyang Technological University, 138673, Singapore.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tegument protein VP22A131Human alphaherpesvirus 1 strain 17Mutation(s): 0 
Gene Names: UL49
Find proteins for P10233 (Human herpesvirus 1 (strain 17))
Explore P10233 
Go to UniProtKB:  P10233
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
peptide SSGVDLB6Human alphaherpesvirus 1 strain 17Mutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.94α = 90
b = 64.94β = 90
c = 107.645γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
PHASERphasing
PHENIXphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-06-24
    Type: Initial release