1HL6

A novel mode of RBD-protein recognition in the Y14-mago complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Novel Mode of Rbd-Protein Recognition in the Y14-Mago Complex

Fribourg, S.Gatfield, D.Izaurralde, E.Conti, E.

(2003) Nat.Struct.Mol.Biol. 10: 433

  • DOI: 10.1038/nsb926

  • PubMed Abstract: 
  • Y14 and Mago are conserved eukaryotic proteins that associate with spliced mRNAs in the nucleus and remain associated at exon junctions during and after nuclear export. In the cytoplasm, Y14 is involved in mRNA quality control via the nonsense-mediat ...

    Y14 and Mago are conserved eukaryotic proteins that associate with spliced mRNAs in the nucleus and remain associated at exon junctions during and after nuclear export. In the cytoplasm, Y14 is involved in mRNA quality control via the nonsense-mediated mRNA decay (NMD) pathway and, together with Mago, is involved in localization of osk (oskar) mRNA. We have determined the crystal structure of the complex between Drosophila melanogaster Y14 and Mago at a resolution of 2.5 A. The structure reveals an atypical mode of protein-protein recognition mediated by an RNA-binding domain (RBD). Instead of binding RNA, the RBD of Y14 engages its RNP1 and RNP2 motifs to bind Mago. Using structure-guided mutagenesis, we show that Mago is also a component of the NMD pathway, and that its association with Y14 is essential for function. Heterodimerization creates a single structural platform that interacts with the NMD machinery via phylogenetically conserved residues.


    Organizational Affiliation

    European Molecular Biology Laboratory, Meyerhofstrasse 1, D-69117 Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CG8781 PROTEIN
A, C
165Drosophila melanogasterGene Names: tsu (Y14)
Find proteins for Q9V535 (Drosophila melanogaster)
Go to UniProtKB:  Q9V535
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MAGO NASHI PROTEIN
B, D
149Drosophila melanogasterGene Names: mago (mgn)
Find proteins for P49028 (Drosophila melanogaster)
Go to UniProtKB:  P49028
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.224 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 140.177α = 90.00
b = 140.177β = 90.00
c = 68.579γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CNSrefinement
SCALAdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-05-08
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance