5E4V

Crystal structure of measles N0-P complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of the Measles Virus Nucleoprotein Core in Complex with an N-Terminal Region of Phosphoprotein.

Guryanov, S.G.Liljeroos, L.Kasaragod, P.Kajander, T.Butcher, S.J.

(2015) J.Virol. 90: 2849-2857

  • DOI: 10.1128/JVI.02865-15

  • PubMed Abstract: 
  • The enveloped negative-stranded RNA virus measles virus (MeV) is an important human pathogen. The nucleoprotein (N(0)) assembles with the viral RNA into helical ribonucleocapsids (NC) which are, in turn, coated by a helical layer of the matrix protei ...

    The enveloped negative-stranded RNA virus measles virus (MeV) is an important human pathogen. The nucleoprotein (N(0)) assembles with the viral RNA into helical ribonucleocapsids (NC) which are, in turn, coated by a helical layer of the matrix protein. The viral polymerase complex uses the NC as its template. The N(0) assembly onto the NC and the activity of the polymerase are regulated by the viral phosphoprotein (P). In this study, we pulled down an N(0)₁₋₄₀₈ fragment lacking most of its C-terminal tail domain by several affinity-tagged, N-terminal P fragments to map the N(0)-binding region of P to the first 48 amino acids. We showed biochemically and using P mutants the importance of the hydrophobic interactions for the binding. We fused an N(0) binding peptide, P₁₋₄₈, to the C terminus of an N(0)₂₁₋₄₀₈ fragment lacking both the N-terminal peptide and the C-terminal tail of N protein to reconstitute and crystallize the N(0)-P complex. We solved the X-ray structure of the resulting N(0)-P chimeric protein at a resolution of 2.7 Å. The structure reveals the molecular details of the conserved N(0)-P interface and explains how P chaperones N(0), preventing both self-assembly of N(0) and its binding to RNA. Finally, we propose a model for a preinitiation complex for RNA polymerization.


    Organizational Affiliation

    Department of Biological Sciences, University of Helsinki, Helsinki, Finland Institute of Biotechnology, University of Helsinki, Helsinki, Finland.,Institute of Biotechnology, University of Helsinki, Helsinki, Finland.,Department of Biological Sciences, University of Helsinki, Helsinki, Finland Institute of Biotechnology, University of Helsinki, Helsinki, Finland sarah.butcher@helsinki.fi.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nucleoprotein,Phosphoprotein
A
437Measles virus (strain Edmonston B)Measles virus (strain Edmonston-Moraten vaccine)
This entity is chimeric
Mutation(s): 0 
Gene Names: N (NP), P
Find proteins for Q89933 (Measles virus (strain Edmonston B))
Go to UniProtKB:  Q89933
Find proteins for Q77M42 (Measles virus (strain Edmonston-Moraten vaccine))
Go to UniProtKB:  Q77M42
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.211 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 91.140α = 90.00
b = 91.140β = 90.00
c = 94.210γ = 120.00
Software Package:
Software NamePurpose
xia2data reduction
PHASERphasing
xia2data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Academy of FinlandFinland139178
Academy of FinlandFinland275199
Sigrid Juselius FoundationFinland--
Viikki Doctoral Programme in Molecular BiosciencesFinland--
Biocenter FinlandFinland--
Instruct National affiliate centerFinland--

Revision History 

  • Version 1.0: 2016-01-27
    Type: Initial release
  • Version 1.1: 2016-03-09
    Type: Database references