Structure of human SRSF1 RRM1 bound to AACAAA RNA

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structure of SRSF1 RRM1 bound to RNA reveals an unexpected bimodal mode of interaction and explains its involvement in SMN1 exon7 splicing.

Clery, A.Krepl, M.Nguyen, C.K.X.Moursy, A.Jorjani, H.Katsantoni, M.Okoniewski, M.Mittal, N.Zavolan, M.Sponer, J.Allain, F.H.

(2021) Nat Commun 12: 428-428

  • DOI: https://doi.org/10.1038/s41467-020-20481-w
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The human prototypical SR protein SRSF1 is an oncoprotein that contains two RRMs and plays a pivotal role in RNA metabolism. We determined the structure of the RRM1 bound to RNA and found that the domain binds preferentially to a CN motif (N is for any nucleotide). Based on this solution structure, we engineered a protein containing a single glutamate to asparagine mutation (E87N), which gains the ability to bind to uridines and thereby activates SMN exon7 inclusion, a strategy that is used to cure spinal muscular atrophy. Finally, we revealed that the flexible inter-RRM linker of SRSF1 allows RRM1 to bind RNA on both sides of RRM2 binding site. Besides revealing an unexpected bimodal mode of interaction of SRSF1 with RNA, which will be of interest to design new therapeutic strategies, this study brings a new perspective on the mode of action of SRSF1 in cells.

  • Organizational Affiliation

    Department of Biology, Institute of Biochemistry, ETH Zurich, Zurich, Switzerland. aclery@mol.biol.ethz.ch.


Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Immunoglobulin G-binding protein G,Serine/arginine-rich splicing factor 1A [auth B]161Streptococcus sp. 'group GHomo sapiens
This entity is chimeric
Mutation(s): 0 
Gene Names: spgSRSF1ASFSF2SF2P33SFRS1OK/SW-cl.3
UniProt & NIH Common Fund Data Resources
Find proteins for Q07955 (Homo sapiens)
Explore Q07955 
Go to UniProtKB:  Q07955
GTEx:  ENSG00000136450 
Find proteins for P19909 (Streptococcus sp. group G)
Explore P19909 
Go to UniProtKB:  P19909
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsQ07955P19909
Sequence Annotations
  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains LengthOrganismImage
RNA (5'-R(*AP*AP*CP*AP*AP*A)-3')B [auth A]6Homo sapiens
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-11-18
    Type: Initial release
  • Version 1.1: 2021-06-02
    Changes: Database references
  • Version 1.2: 2024-05-15
    Changes: Data collection, Database references