1M1L

Human Suppressor of Fused (N-terminal domain)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.224 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Suppressor of fused regulates Gli activity through a dual binding mechanism

Merchant, M.Vajdos, F.F.Ultsch, M.Maun, H.R.Wendt, U.Cannon, J.Desmarais, W.Lazarus, R.A.de Vos, A.M.de Sauvage, F.J.

(2004) Mol Cell Biol 24: 8627-8641

  • DOI: 10.1128/MCB.24.19.8627-8641.2004
  • Primary Citation of Related Structures:  
    1M1L

  • PubMed Abstract: 
  • The Hedgehog pathway drives proliferation and differentiation by activating the Gli/Ci family of zinc finger transcription factors. Gli/Ci proteins form Hedgehog signaling complexes with other signaling components, including the kinesin-like protein ...

    The Hedgehog pathway drives proliferation and differentiation by activating the Gli/Ci family of zinc finger transcription factors. Gli/Ci proteins form Hedgehog signaling complexes with other signaling components, including the kinesin-like protein Costal-2, the serine-threonine kinase Fused, and Suppressor of Fused [Su(fu)]. In these complexes Gli/Ci proteins are regulated by cytoplasmic sequestration, phosphorylation, and proteolysis. Here we characterize structural and functional determinants of Su(fu) required for Gli regulation and show that Su(fu) contains at least two distinct domains: a highly conserved carboxy-terminal region required for binding to the amino-terminal ends of the Gli proteins and a unique amino-terminal domain that binds the carboxy-terminal tail of Gli1. While each domain is capable of binding to different Gli1 regions independently, interactions between Su(fu) and Gli1 at both sites are required for cytoplasmic tethering and repression of Gli1. Furthermore, we have solved the crystal structure of the amino-terminal domain of human Su(fu)(27-268) at 2.65 A resolution. This domain forms a concave pocket with a prominent acidic patch. Mutation at Asp(159) in the acidic patch disrupts Gli1 tethering and repression while not strongly disrupting binding, indicating that the amino-terminal domain of Su(fu) likely impacts Gli binding through a mechanism distinct from that for tethering and repression. These studies provide a structural basis for understanding the function of Su(fu).


    Organizational Affiliation

    Department of Molecular Biology, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA. mmerch@gene.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Suppressor of FusedABCD236Homo sapiensMutation(s): 0 
Gene Names: SUFUUNQ650/PRO1280
Find proteins for Q9UMX1 (Homo sapiens)
Explore Q9UMX1 
Go to UniProtKB:  Q9UMX1
NIH Common Fund Data Resources
PHAROS  Q9UMX1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.224 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 173.025α = 90
b = 173.025β = 90
c = 290.833γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-02-03
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance