2I2Y

Solution structure of the RRM of SRp20 bound to the RNA CAUC


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of RNA recognition and TAP binding by the SR proteins SRp20 and 9G8.

Hargous, Y.Hautbergue, G.M.Tintaru, A.M.Skrisovska, L.Golovanov, A.P.Stevenin, J.Lian, L.Y.Wilson, S.A.Allain, F.H.

(2006) Embo J. 25: 5126-5137

  • DOI: 10.1038/sj.emboj.7601385
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The sequence-specific RNA-binding proteins SRp20 and 9G8 are the smallest members of the serine- and arginine-rich (SR) protein family, well known for their role in splicing. They also play a role in mRNA export, in particular of histone mRNAs. We pr ...

    The sequence-specific RNA-binding proteins SRp20 and 9G8 are the smallest members of the serine- and arginine-rich (SR) protein family, well known for their role in splicing. They also play a role in mRNA export, in particular of histone mRNAs. We present the solution structures of the free 9G8 and SRp20 RNA recognition motifs (RRMs) and of SRp20 RRM in complex with the RNA sequence 5'CAUC3'. The SRp20-RNA structure reveals that although all 4 nt are contacted by the RRM, only the 5' cytosine is primarily recognized in a specific way. This might explain the numerous consensus sequences found by SELEX (systematic evolution of ligands by exponential enrichment) for the RRM of 9G8 and SRp20. Furthermore, we identify a short arginine-rich peptide adjacent to the SRp20 and 9G8 RRMs, which does not contact RNA but is necessary and sufficient for interaction with the export factor Tip-associated protein (TAP). Together, these results provide a molecular description for mRNA and TAP recognition by SRp20 and 9G8.


    Organizational Affiliation

    Institute of Molecular Biology and Biophysics, ETH Zurich, Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fusion protein consists of immunoglobulin G-Binding Protein G and Splicing factor, arginine/serine-rich 3
A
150Homo sapiensStreptococcus sp. group G
This entity is chimeric
Mutation(s): 0 
Gene Names: SRSF3 (SFRS3, SRP20), spg
Find proteins for P84103 (Homo sapiens)
Go to Gene View: SRSF3
Go to UniProtKB:  P84103
Find proteins for P19909 (Streptococcus sp. group G)
Go to UniProtKB:  P19909
Entity ID: 1
MoleculeChainsLengthOrganism
(5'-R(*CP*AP*UP*C)-3')B4N/A
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 2I2Y Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-12-12
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance