1IJY

CRYSTAL STRUCTURE OF THE CYSTEINE-RICH DOMAIN OF MOUSE FRIZZLED 8 (MFZ8)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.225 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Insights into Wnt binding and signalling from the structures of two Frizzled cysteine-rich domains.

Dann III, C.E.Hsieh, J.C.Rattner, A.Sharma, D.Nathans, J.Leahy, D.J.

(2001) Nature 412: 86-90

  • DOI: 10.1038/35083601
  • Primary Citation of Related Structures:  
    1IJX, 1IJY

  • PubMed Abstract: 
  • Members of the Frizzled family of seven-pass transmembrane proteins serve as receptors for Wnt signalling proteins. Wnt proteins have important roles in the differentiation and patterning of diverse tissues during animal development, and inappropriate activation of Wnt signalling pathways is a key feature of many cancers ...

    Members of the Frizzled family of seven-pass transmembrane proteins serve as receptors for Wnt signalling proteins. Wnt proteins have important roles in the differentiation and patterning of diverse tissues during animal development, and inappropriate activation of Wnt signalling pathways is a key feature of many cancers. An extracellular cysteine-rich domain (CRD) at the amino terminus of Frizzled proteins binds Wnt proteins, as do homologous domains in soluble proteins-termed secreted Frizzled-related proteins-that function as antagonists of Wnt signalling. Recently, an LDL-receptor-related protein has been shown to function as a co-receptor for Wnt proteins and to bind to a Frizzled CRD in a Wnt-dependent manner. To investigate the molecular nature of the Wnt signalling complex, we determined the crystal structures of the CRDs from mouse Frizzled 8 and secreted Frizzled-related protein 3. Here we show a previously unknown protein fold, and the design and interpretation of CRD mutations that identify a Wnt-binding site. CRDs exhibit a conserved dimer interface that may be a feature of Wnt signalling. This work provides a framework for studies of homologous CRDs in proteins including muscle-specific kinase and Smoothened, a component of the Hedgehog signalling pathway.


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FRIZZLED HOMOLOG 8A, B130Mus musculusMutation(s): 2 
Gene Names: Fzd8
UniProt & NIH Common Fund Data Resources
Find proteins for Q61091 (Mus musculus)
Explore Q61091 
Go to UniProtKB:  Q61091
IMPC:  MGI:108460
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ61091
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.35 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.225 
  • Space Group: P 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.69α = 90
b = 36.37β = 98.82
c = 57.94γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-07-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2014-05-28
    Changes: Structure summary
  • Version 1.4: 2021-10-27
    Changes: Database references