5BQ8

Crystal structure of Norrin, a Wnt signalling activator, Crystal Form II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.234 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure and functional properties of Norrin mimic Wnt for signalling with Frizzled4, Lrp5/6, and proteoglycan.

Chang, T.H.Hsieh, F.L.Zebisch, M.Harlos, K.Elegheert, J.Jones, E.Y.

(2015) Elife 4: e06554

  • DOI: 10.7554/eLife.06554
  • Primary Citation of Related Structures:  
    5BPB, 5BPQ, 5BPU, 5BQ8, 5BQB, 5BQC, 5BQE

  • PubMed Abstract: 
  • Wnt signalling regulates multiple processes including angiogenesis, inflammation, and tumorigenesis. Norrin (Norrie Disease Protein) is a cystine-knot like growth factor. Although unrelated to Wnt, Norrin activates the Wnt/β-catenin pathway. Signal complex formation involves Frizzled4 (Fz4), low-density lipoprotein receptor related protein 5/6 (Lrp5/6), Tetraspanin-12 and glycosaminoglycans (GAGs) ...

    Wnt signalling regulates multiple processes including angiogenesis, inflammation, and tumorigenesis. Norrin (Norrie Disease Protein) is a cystine-knot like growth factor. Although unrelated to Wnt, Norrin activates the Wnt/β-catenin pathway. Signal complex formation involves Frizzled4 (Fz4), low-density lipoprotein receptor related protein 5/6 (Lrp5/6), Tetraspanin-12 and glycosaminoglycans (GAGs). Here, we report crystallographic and small-angle X-ray scattering analyses of Norrin in complex with Fz4 cysteine-rich domain (Fz4CRD), of this complex bound with GAG analogues, and of unliganded Norrin and Fz4CRD. Our structural, biophysical and cellular data, map Fz4 and putative Lrp5/6 binding sites to distinct patches on Norrin, and reveal a GAG binding site spanning Norrin and Fz4CRD. These results explain numerous disease-associated mutations. Comparison with the Xenopus Wnt8-mouse Fz8CRD complex reveals Norrin mimics Wnt for Frizzled recognition. The production and characterization of wild-type and mutant Norrins reported here open new avenues for the development of therapeutics to combat abnormal Norrin/Wnt signalling.


    Organizational Affiliation

    Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NorrinA, C122Homo sapiensMutation(s): 0 
Gene Names: NDPEVR2
UniProt & NIH Common Fund Data Resources
Find proteins for Q00604 (Homo sapiens)
Explore Q00604 
Go to UniProtKB:  Q00604
PHAROS:  Q00604
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
NorrinB122Homo sapiensMutation(s): 0 
Gene Names: NDPEVR2
UniProt & NIH Common Fund Data Resources
Find proteins for Q00604 (Homo sapiens)
Explore Q00604 
Go to UniProtKB:  Q00604
PHAROS:  Q00604
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
NorrinD122Homo sapiensMutation(s): 0 
Gene Names: NDPEVR2
UniProt & NIH Common Fund Data Resources
Find proteins for Q00604 (Homo sapiens)
Explore Q00604 
Go to UniProtKB:  Q00604
PHAROS:  Q00604
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG
Query on PEG

Download Ideal Coordinates CCD File 
G [auth D]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
E [auth B], F [auth C], H [auth D]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MLY
Query on MLY
A, CL-PEPTIDE LINKINGC8 H18 N2 O2LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.234 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.667α = 90
b = 53.059β = 90
c = 96.128γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
Cootmodel building
PHENIXrefinement

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomG0900084
Cancer Research UKUnited KingdomC375/A10976
Wellcome TrustUnited Kingdom090532/Z/09/Z

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2015-07-22
    Changes: Database references
  • Version 1.2: 2015-07-29
    Changes: Database references
  • Version 1.3: 2017-09-13
    Changes: Author supporting evidence