2OA5

Crystal structure of ORF52 from Murid herpesvirus (MUHV-4) (Murine gammaherpesvirus 68) at 2.1 A resolution. Northeast Structural Genomics Consortium target MHR28B.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural and functional studies of the abundant tegument protein ORF52 from murine gammaherpesvirus 68.

Benach, J.Wang, L.Chen, Y.Ho, C.K.Lee, S.Seetharaman, J.Xiao, R.Acton, T.B.Montelione, G.T.Deng, H.Sun, R.Tong, L.

(2007) J Biol Chem 282: 31534-31541

  • DOI: 10.1074/jbc.M705637200
  • Primary Citation of Related Structures:  
    2OA5

  • PubMed Abstract: 
  • The tegument is a layer of proteins between the nucleocapsid and the envelope of herpesviruses. The functions of most tegument proteins are still poorly understood. In murine gammaherpesvirus 68, ORF52 is an abundant tegument protein of 135 residues ...

    The tegument is a layer of proteins between the nucleocapsid and the envelope of herpesviruses. The functions of most tegument proteins are still poorly understood. In murine gammaherpesvirus 68, ORF52 is an abundant tegument protein of 135 residues that is required for the assembly and release of infectious virus particles. To help understand the molecular basis for the function of this protein, we have determined its crystal structure at 2.1 A resolution. The structure reveals a dimeric association of this protein. Interestingly, an N-terminal alpha-helix that assumes different conformation in the two monomers of the dimer mediates the formation of an asymmetrical tetramer and contains many highly conserved residues. Structural and sequence analyses suggest that this helix is more likely involved in interactions with other components of the tegument or nucleocapsid of the virus and that ORF52 functions as a symmetrical dimer. The asymmetrical tetramer of ORF52 may be a "latent" form of the protein, when it is not involved in virion assembly. The self-association of ORF52 has been confirmed by co-immunoprecipitation and fluorescence resonance energy transfer experiments. Deletion of the N-terminal alpha-helix, as well as mutation of the conserved Arg(95) residue, abolished the function of ORF52. The results of the functional studies are fully consistent with the structural observations and indicate that the N-terminal alpha-helix is a crucial site of interaction for ORF52.


    Organizational Affiliation

    Department of Biological Sciences, Northeast Structural Genomics Consortium, Columbia University, New York, New York 10027, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hypothetical protein BQLF2AB110Murid gammaherpesvirus 4Mutation(s): 4 
Gene Names: BQLF252GAMMAHV.ORF52
Find proteins for P88989 (Murid herpesvirus 4)
Explore P88989 
Go to UniProtKB:  P88989
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PE5
Query on PE5

Download CCD File 
A, B
3,6,9,12,15,18,21,24-OCTAOXAHEXACOSAN-1-OL
C18 H38 O9
CUDPPTPIUWYGFI-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 93.462α = 90
b = 49.393β = 111.88
c = 56.379γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
COMOphasing
CNSrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-01-30
    Type: Initial release
  • Version 1.1: 2007-09-17
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description
  • Version 1.4: 2017-10-25
    Changes: Author supporting evidence