1HL6

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.224 
  • R-Value Observed: 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 Biol 10: 433

  • DOI: 10.1038/nsb926
  • Primary Citation of Related Structures:  
    1HL6

  • 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-mediated mRNA decay (NMD) pathway and, together with Mago, is involved in localization of osk (oskar) mRNA ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CG8781 PROTEINA, C165Drosophila melanogasterMutation(s): 0 
Gene Names: tsuY14CG8781
UniProt
Find proteins for Q9V535 (Drosophila melanogaster)
Explore Q9V535 
Go to UniProtKB:  Q9V535
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9V535
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
MAGO NASHI PROTEINB, D149Drosophila melanogasterMutation(s): 0 
Gene Names: magomgnCG9401
UniProt
Find proteins for P49028 (Drosophila melanogaster)
Explore P49028 
Go to UniProtKB:  P49028
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49028
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.224 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.177α = 90
b = 140.177β = 90
c = 68.579γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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