5X8N

Crystal structure of mouse importin-alpha1 bound to the nuclear localization signal of Epstein-Barr virus EBNA-LP protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of importin-alpha bound to the nuclear localization signal of Epstein-Barr virus EBNA-LP protein

Nakada, R.Matsuura, Y.

(2017) Protein Sci 26: 1231-1235

  • DOI: 10.1002/pro.3173
  • Primary Citation of Related Structures:  
    5X8N

  • PubMed Abstract: 
  • Epstein-Barr virus EBNA-LP protein is a transcriptional coactivator of EBNA2. Efficient nuclear localization of EBNA-LP is essential for cooperation with EBNA2. Here, we report the crystal structure of the nuclear import adaptor importin-α1 bound to ...

    Epstein-Barr virus EBNA-LP protein is a transcriptional coactivator of EBNA2. Efficient nuclear localization of EBNA-LP is essential for cooperation with EBNA2. Here, we report the crystal structure of the nuclear import adaptor importin-α1 bound to the nuclear localization signal (NLS) of EBNA-LP that shows EBNA-LP residues 44-RRVRRR-49 binding to the major NLS-binding site at the P0-P5 positions. In contrast to previously characterized classical NLSs that invariably have a basic residue [either lysine (in the vast majority of cases) or arginine] at the P2 position, the EBNA-LP NLS is unique in that it has valine at the P2 position. The loss of the critical P2 lysine (or arginine) is compensated by arginine at the P0 position in the EBNA-LP NLS.


    Organizational Affiliation

    Structural Biology Research Center, Graduate School of Science, Nagoya University, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Importin subunit alpha-1A460Mus musculusMutation(s): 0 
Gene Names: Kpna2Rch1
Find proteins for P52293 (Mus musculus)
Explore P52293 
Go to UniProtKB:  P52293
NIH Common Fund Data Resources
IMPC  MGI:103561
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Epstein-Barr nuclear antigen leader proteinB22Human herpesvirus 4 strain B95-8Mutation(s): 0 
Gene Names: EBNA-LPEBNA5
Find proteins for Q8AZK7 (Epstein-Barr virus (strain B95-8))
Explore Q8AZK7 
Go to UniProtKB:  Q8AZK7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.27α = 90
b = 90.29β = 90
c = 98.17γ = 90
Software Package:
Software NamePurpose
MOSFLMdata collection
Aimlessdata scaling
MOLREPphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Cootmodel building
Aimlessdata processing
MOSFLMdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-04-19
    Type: Initial release
  • Version 1.1: 2017-06-07
    Changes: Database references