5CFF

Crystal structure of Miranda/Staufen dsRBD5 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.242 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structural basis of Miranda-mediated Staufen localization during Drosophila neuroblast asymmetric division

Jia, M.Shan, Z.Yang, Y.Liu, C.Li, J.Luo, Z.G.Zhang, M.Cai, Y.Wen, W.Wang, W.

(2015) Nat Commun 6: 8381-8381

  • DOI: 10.1038/ncomms9381

  • PubMed Abstract: 
  • During the asymmetric division of Drosophila neuroblasts (NBs), the scaffold Miranda (Mira) coordinates the subcellular distribution of cell-fate determinants including Staufen (Stau) and segregates them into the ganglion mother cells (GMCs). Here we ...

    During the asymmetric division of Drosophila neuroblasts (NBs), the scaffold Miranda (Mira) coordinates the subcellular distribution of cell-fate determinants including Staufen (Stau) and segregates them into the ganglion mother cells (GMCs). Here we show the fifth double-stranded RNA (dsRNA)-binding domain (dsRBD5) of Stau is necessary and sufficient for binding to a coiled-coil region of Mira cargo-binding domain (CBD). The crystal structure of Mira514-595/Stau dsRBD5 complex illustrates that Mira forms an elongated parallel coiled-coil dimer, and two dsRBD5 symmetrically bind to the Mira dimer through their exposed β-sheet faces, revealing a previously unrecognized protein interaction mode for dsRBDs. We further demonstrate that the Mira-Stau dsRBD5 interaction is responsible for the asymmetric localization of Stau during Drosophila NB asymmetric divisions. Finally, we find the CBD-mediated dimer assembly is likely a common requirement for Mira to recognize and translocate other cargos including brain tumour (Brat).


    Organizational Affiliation

    Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry and Key Laboratory of Molecular Medicine, Ministry of Education, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai 200433, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Miranda
A, B, C, D
95Drosophila melanogasterMutation(s): 0 
Gene Names: mira (Dmel\CG12249, MIR, Mir, mir, MIRA, Mira, Miranda)
Find proteins for Q9VDR7 (Drosophila melanogaster)
Go to UniProtKB:  Q9VDR7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Staufen
E, F, G, H
72Drosophila melanogasterMutation(s): 0 
Gene Names: stau
Find proteins for P25159 (Drosophila melanogaster)
Go to UniProtKB:  P25159
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D, E, F, G, H
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.242 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 200.023α = 90.00
b = 51.332β = 90.56
c = 100.274γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
SHELXphasing
PDB_EXTRACTdata extraction
HKL-2000data collection
DMphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2015-07-08 
  • Released Date: 2015-10-21 
  • Deposition Author(s): Shan, Z., Wen, W.

Revision History 

  • Version 1.0: 2015-10-21
    Type: Initial release
  • Version 1.1: 2015-10-28
    Type: Database references