6SDW

Solution structure of Staufen1 dsRBD3+4 - hARF1 SBS dsRNA complex.


Experimental Data Snapshot

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

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Staufen1 reads out structure and sequence features in ARF1 dsRNA for target recognition.

Yadav, D.K.Zigackova, D.Zlobina, M.Klumpler, T.Beaumont, C.Kubickova, M.Vanacova, S.Lukavsky, P.J.

(2019) Nucleic Acids Res. --: --

  • DOI: 10.1093/nar/gkz1163
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Staufen1 (STAU1) is a dsRNA binding protein mediating mRNA transport and localization, translational control and STAU1-mediated mRNA decay (SMD). The STAU1 binding site (SBS) within human ADP-ribosylation factor1 (ARF1) 3'UTR binds STAU1 and this dow ...

    Staufen1 (STAU1) is a dsRNA binding protein mediating mRNA transport and localization, translational control and STAU1-mediated mRNA decay (SMD). The STAU1 binding site (SBS) within human ADP-ribosylation factor1 (ARF1) 3'UTR binds STAU1 and this downregulates ARF1 cytoplasmic mRNA levels by SMD. However, how STAU1 recognizes specific mRNA targets is still under debate. Our structure of the ARF1 SBS-STAU1 complex uncovers target recognition by STAU1. STAU1 dsRNA binding domain (dsRBD) 4 interacts with two pyrimidines and one purine from the minor groove side via helix α1, the β1-β2 loop anchors the dsRBD at the end of the dsRNA and lysines in helix α2 bind to the phosphodiester backbone from the major groove side. STAU1 dsRBD3 displays the same binding mode with specific recognition of one guanine base. Mutants disrupting minor groove recognition of ARF1 SBS affect in vitro binding and reduce SMD in vivo. Our data thus reveal how STAU1 recognizes minor groove features in dsRNA relevant for target selection.


    Organizational Affiliation

    Central European Institute of Technology, Masaryk University, Kamenice 753/5, 62500, Brno, Czech Republic.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Double-stranded RNA-binding protein Staufen homolog 1
A
177Homo sapiensMutation(s): 0 
Gene Names: STAU1 (STAU)
Find proteins for O95793 (Homo sapiens)
Go to Gene View: STAU1
Go to UniProtKB:  O95793
Entity ID: 2
MoleculeChainsLengthOrganism
hARF1 SBS dsRNAB34Homo sapiens
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Grant Agency of the Czech RepublicCzech Republic18-08153S
European Molecular Biology OrganizationGermany3014
European CommissionBelgiumPCIG14-GA-2013-630758
Ministry of Education (Czech Republic)Czech RepublicLQ1601

Revision History 

  • Version 1.0: 2020-01-15
    Type: Initial release