Macromolecule Content

• Total Structure Weight: 10.20 kDa 
• Atom Count: 713 
• Modelled Residue Count: 95 
• Deposited Residue Count: 95 
• Unique protein chains: 1

1MC7

Solution Structure of mDvl1 PDZ domain

• DOI: 10.2210/pdb1MC7/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Mus musculus
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2002-08-05 Released: 2003-09-23 
• Deposition Author(s): Wong, H.-C., Bourdelas, A., Shao, Y., Wu, D., Shi, D.L., Zheng, J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 320 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Direct binding of the PDZ domain of Dishevelled to a conserved internal sequence in the C-terminal region of Frizzled

Wong, H.-C., Bourdelas, A., Krauss, A., Lee, H.-J., Shao, Y., Wu, D., Mlodzik, M., Shi, D.-L., Zheng, J.

(2003) Mol Cell 12: 1251-1260

• PubMed: 14636582 
• DOI: 10.1016/s1097-2765(03)00427-1
• Primary Citation of Related Structures:  
  1MC7


• PubMed Abstract: 
  

The cytoplasmic protein Dishevelled (Dvl) and the associated membrane-bound receptor Frizzled (Fz) are essential in canonical and noncanonical Wnt signaling pathways. However, the molecular mechanisms underlying this signaling are not well understood. By using NMR spectroscopy, we determined that an internal sequence of Fz binds to the conventional peptide binding site in the PDZ domain of Dvl; this type of site typically binds to C-terminal binding motifs. The C-terminal region of the Dvl inhibitor Dapper (Dpr) and Frodo bound to the same site. In Xenopus, Dvl binding peptides of Fz and Dpr/Frodo inhibited canonical Wnt signaling and blocked Wnt-induced secondary axis formation in a dose-dependent manner, but did not block noncanonical Wnt signaling mediated by the DEP domain. Together, our results identify a missing molecular connection within the Wnt pathway. Differences in the binding affinity of the Dvl PDZ domain and its binding partners may be important in regulating signal transduction by Dvl.

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Organizational Affiliation: 

Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Segment polarity protein dishevelled homolog DVL-1	A	95	Mus musculus	Mutation(s): 1  Gene Names: Dvl1, Dvl
Find proteins for P51141 (Mus musculus) Explore P51141  Go to UniProtKB:  P51141

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 320 
• Conformers Submitted: 20 
• Selection Criteria: target function 
• OLDERADO: 1MC7 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-08-05 
• Released Date: 2003-09-23 
Deposition Author(s): Wong, H.-C., Bourdelas, A., Shao, Y., Wu, D., Shi, D.L., Zheng, J.

Revision History  

• Version 1.0: 2003-09-23
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance