4BLG

Crystal structure of MHV-68 Latency-associated nuclear antigen (LANA) C-terminal DNA binding domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.171 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of the Gamma-2 Herpesvirus Lana DNA Binding Domain Identifies Charged Surface Residues which Impact Viral Latency

Correia, B.Cerqueira, S.A.Beauchemin, C.Pires De Miranda, M.Li, S.Ponnusamy, R.Rodrigues, L.Schneider, T.R.Carrondo, M.A.Kaye, K.M.Simas, J.P.Mcvey, C.E.

(2013) Plos Pathog. 9: 3673

  • DOI: 10.1371/journal.ppat.1003673

  • PubMed Abstract: 
  • Latency-associated nuclear antigen (LANA) mediates γ2-herpesvirus genome persistence and regulates transcription. We describe the crystal structure of the murine gammaherpesvirus-68 LANA C-terminal domain at 2.2 Å resolution. The structure reveals an ...

    Latency-associated nuclear antigen (LANA) mediates γ2-herpesvirus genome persistence and regulates transcription. We describe the crystal structure of the murine gammaherpesvirus-68 LANA C-terminal domain at 2.2 Å resolution. The structure reveals an alpha-beta fold that assembles as a dimer, reminiscent of Epstein-Barr virus EBNA1. A predicted DNA binding surface is present and opposite this interface is a positive electrostatic patch. Targeted DNA recognition substitutions eliminated DNA binding, while certain charged patch mutations reduced bromodomain protein, BRD4, binding. Virus containing LANA abolished for DNA binding was incapable of viable latent infection in mice. Virus with mutations at the charged patch periphery exhibited substantial deficiency in expansion of latent infection, while central region substitutions had little effect. This deficiency was independent of BRD4. These results elucidate the LANA DNA binding domain structure and reveal a unique charged region that exerts a critical role in viral latent infection, likely acting through a host cell protein(s).


    Organizational Affiliation

    Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LATENCY-ASSOCIATED NUCLEAR ANTIGEN
A, B
141Murid herpesvirus 4Mutation(s): 0 
Gene Names: GAMMAHV.ORF73 (73)
Find proteins for O41974 (Murid herpesvirus 4)
Go to UniProtKB:  O41974
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.171 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 88.575α = 90.00
b = 61.680β = 99.36
c = 63.678γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-30
    Type: Initial release
  • Version 1.1: 2014-12-17
    Type: Data collection
  • Version 1.2: 2018-03-07
    Type: Advisory, Data collection, Source and taxonomy