1PD3

Influenza A NEP M1-binding domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the M1 protein-binding domain of the influenza A virus nuclear export protein (NEP/NS2).

Akarsu, H.Burmeister, W.P.Petosa, C.Petit, I.Muller, C.W.Ruigrok, R.W.Baudin, F.

(2003) Embo J. 22: 4646-4655

  • DOI: 10.1093/emboj/cdg449

  • PubMed Abstract: 
  • During influenza virus infection, viral ribonucleoproteins (vRNPs) are replicated in the nucleus and must be exported to the cytoplasm before assembling into mature viral particles. Nuclear export is mediated by the cellular protein Crm1 and putative ...

    During influenza virus infection, viral ribonucleoproteins (vRNPs) are replicated in the nucleus and must be exported to the cytoplasm before assembling into mature viral particles. Nuclear export is mediated by the cellular protein Crm1 and putatively by the viral protein NEP/NS2. Proteolytic cleavage of NEP defines an N-terminal domain which mediates RanGTP-dependent binding to Crm1 and a C-terminal domain which binds to the viral matrix protein M1. The 2.6 A crystal structure of the C-terminal domain reveals an amphipathic helical hairpin which dimerizes as a four-helix bundle. The NEP-M1 interaction involves two critical epitopes: an exposed tryptophan (Trp78) surrounded by a cluster of glutamate residues on NEP, and the basic nuclear localization signal (NLS) of M1. Implications for vRNP export are discussed.


    Organizational Affiliation

    EMBL Grenoble Outstation, BP 181, 38042 Grenoble cedex 9, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nonstructural protein NS2
A, B
58Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)Mutation(s): 0 
Gene Names: NS
Find proteins for P03508 (Influenza A virus (strain A/Puerto Rico/8/1934 H1N1))
Go to UniProtKB:  P03508
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.176 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 82.691α = 90.00
b = 82.691β = 90.00
c = 61.111γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SOLVEphasing
REFMACrefinement
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2003-05-19 
  • Released Date: 2003-12-16 
  • Deposition Author(s): Baudin, F.

Revision History 

  • Version 1.0: 2003-12-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Derived calculations, Version format compliance