4KMA

Crystal structure of Drosophila Suppressor of Fused


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structural insight into the mutual recognition and regulation between Suppressor of Fused and Gli/Ci.

Zhang, Y.Fu, L.Qi, X.Zhang, Z.Xia, Y.Jia, J.Jiang, J.Zhao, Y.Wu, G.

(2013) Nat Commun 4: 2608-2608

  • DOI: https://doi.org/10.1038/ncomms3608
  • Primary Citation of Related Structures:  
    4KM8, 4KM9, 4KMA, 4KMD, 4KMH

  • PubMed Abstract: 

    Hedgehog (Hh) signalling regulates embryonic development and adult tissue homoeostasis. Mutations of its pathway components including Suppressor of Fused (Sufu) and Gli/Ci predispose to cancers and congenital anomalies. The Sufu-Gli protein complex occupies a central position in the vertebrate Hh signalling pathway, especially in mammals. Here structures of full-length human and Drosophila Sufu, the human Sufu-Gli complex, along with normal mode analysis and FRET measurement results, reveal that Sufu alternates between 'open' and 'closed' conformations. The 'closed' form of Sufu is stabilized by Gli binding and inhibited by Hh treatment, whereas the 'open' state of Sufu is promoted by Gli-dissociation and Hh signalling. Mutations of critical interface residues disrupt the Sufu-Gli complex and prevent Sufu from repressing Gli-mediated transcription, tethering Gli in the cytoplasm and protecting Gli from the 26S proteasome-mediated degradation. Our study thus provides mechanistic insight into the mutual recognition and regulation between Sufu and Gli/Ci.


  • Organizational Affiliation

    1] State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China [2].


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GM14141p498Drosophila melanogasterMutation(s): 0 
Gene Names: Su(fu)Dmel_CG6054
UniProt
Find proteins for Q9VG38 (Drosophila melanogaster)
Explore Q9VG38 
Go to UniProtKB:  Q9VG38
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9VG38
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.824α = 90
b = 113.367β = 90
c = 131.147γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-11-20
    Type: Initial release
  • Version 1.1: 2013-11-27
    Changes: Experimental preparation
  • Version 1.2: 2014-02-12
    Changes: Database references
  • Version 1.3: 2017-06-07
    Changes: Database references
  • Version 1.4: 2017-11-15
    Changes: Refinement description
  • Version 1.5: 2023-11-08
    Changes: Data collection, Database references, Refinement description