Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 56.51 kDa 
• Atom Count: 3513 
• Modelled Residue Count: 440 
• Deposited Residue Count: 498 
• Unique protein chains: 1

4KMA

Crystal structure of Drosophila Suppressor of Fused

• PDB DOI: 10.2210/pdb4KMA/pdb

• Classification: PROTEIN BINDING
• Organism(s): Drosophila melanogaster
• Expression System: Trichoplusia ni
• Mutation(s): No 


• Deposited: 2013-05-08 Released: 2013-11-20 
• Deposition Author(s): Zhang, Y., Qi, X., Zhang, Z., Wu, G.

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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 

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

• PubMed: 24217340 
• DOI: 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GM14141p	A	498	Drosophila melanogaster	Mutation(s): 0  Gene Names:  su(fu), Dmel_CG6054, Su(fu), d Sufu, Dmel\CG6054, dSufu, SU(FU), Su(Fu), SUFU, SuFu, Sufu, sufu, CG6054
UniProt
Find proteins for Q9VG38 (Drosophila melanogaster) Explore Q9VG38  Go to UniProtKB:  Q9VG38

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 = 71.824	α = 90
b = 113.367	β = 90
c = 131.147	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-05-08 
• Released Date: 2013-11-20 
Deposition Author(s): Zhang, Y., Qi, X., Zhang, Z., Wu, G.

Revision History  

• 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