2M8D

Structure of SRSF1 RRM2 in complex with the RNA 5'-UGAAGGAC-3'


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 16 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Isolated pseudo-RNA-recognition motifs of SR proteins can regulate splicing using a noncanonical mode of RNA recognition.

Clery, A.Sinha, R.Anczukow, O.Corrionero, A.Moursy, A.Daubner, G.M.Valcarcel, J.Krainer, A.R.Allain, F.H.

(2013) Proc Natl Acad Sci U S A 110: E2802-E2811

  • DOI: 10.1073/pnas.1303445110
  • Primary Citation of Related Structures:  
    2M8D

  • PubMed Abstract: 
  • Serine/arginine (SR) proteins, one of the major families of alternative-splicing regulators in Eukarya, have two types of RNA-recognition motifs (RRMs): a canonical RRM and a pseudo-RRM. Although pseudo-RRMs are crucial for activity of SR proteins, t ...

    Serine/arginine (SR) proteins, one of the major families of alternative-splicing regulators in Eukarya, have two types of RNA-recognition motifs (RRMs): a canonical RRM and a pseudo-RRM. Although pseudo-RRMs are crucial for activity of SR proteins, their mode of action was unknown. By solving the structure of the human SRSF1 pseudo-RRM bound to RNA, we discovered a very unusual and sequence-specific RNA-binding mode that is centered on one α-helix and does not involve the β-sheet surface, which typically mediates RNA binding by RRMs. Remarkably, this mode of binding is conserved in all pseudo-RRMs tested. Furthermore, the isolated pseudo-RRM is sufficient to regulate splicing of about half of the SRSF1 target genes tested, and the bound α-helix is a pivotal element for this function. Our results strongly suggest that SR proteins with a pseudo-RRM frequently regulate splicing by competing with, rather than recruiting, spliceosome components, using solely this unusual RRM.


    Organizational Affiliation

    Institute for Molecular Biology and Biophysics, Swiss Federal Institute of Technology, 8093 Zurich, Switzerland.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/arginine-rich splicing factor 1B91Homo sapiensMutation(s): 0 
Gene Names: SRSF1ASFSF2SF2P33SFRS1OK/SW-cl.3
Find proteins for Q07955 (Homo sapiens)
Explore Q07955 
Go to UniProtKB:  Q07955
NIH Common Fund Data Resources
PHAROS  Q07955
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    RNA (5'-R(*UP*GP*AP*AP*GP*GP*AP*C)-3')A8N/A
    Experimental Data & Validation

    Experimental Data

    • Method: SOLUTION NMR
    • Conformers Calculated: 50 
    • Conformers Submitted: 16 
    • Selection Criteria: structures with the lowest energy 
    • OLDERADO: 2M8D Olderado

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History 

    • Version 1.0: 2013-07-10
      Type: Initial release
    • Version 1.1: 2014-03-12
      Changes: Database references