Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 31591.27 
• Atom Count: 2195 
• Residue Count: 276 
• Unique protein chains: 2

1EG4

STRUCTURE OF A DYSTROPHIN WW DOMAIN FRAGMENT IN COMPLEX WITH A BETA-DYSTROGLYCAN PEPTIDE

• DOI: 10.2210/pdb1EG4/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2000-02-11 Released: 2000-08-23 
• Deposition Author(s): Huang, X., Poy, F., Zhang, R., Joachimiak, A., Sudol, M., Eck, M.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.249 
• R-Value Work: 0.197 

Literature

Structure of a WW domain containing fragment of dystrophin in complex with beta-dystroglycan.

Huang, X., Poy, F., Zhang, R., Joachimiak, A., Sudol, M., Eck, M.J.

(2000) Nat.Struct.Mol.Biol. 7: 634-638

• PubMed: 10932245 
• DOI: 10.1038/77923
• Primary Citation of Related Structures:  
  1EG3


• PubMed Abstract: 
  

Dystrophin and beta-dystroglycan are components of the dystrophin-glycoprotein complex (DGC), a multimolecular assembly that spans the cell membrane and links the actin cytoskeleton to the extracellular basal lamina. Defects in the dystrophin gene are the cause of Duchenne and Becker muscular dystrophies. The C-terminal region of dystrophin binds the cytoplasmic tail of beta-dystroglycan, in part through the interaction of its WW domain with a proline-rich motif in the tail of beta-dystroglycan. Here we report the crystal structure of this portion of dystrophin in complex with the proline-rich binding site in beta-dystroglycan. The structure shows that the dystrophin WW domain is embedded in an adjacent helical region that contains two EF-hand-like domains. The beta-dystroglycan peptide binds a composite surface formed by the WW domain and one of these EF-hands. Additionally, the structure reveals striking similarities in the mechanisms of proline recognition employed by WW domains and SH3 domains.

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Organizational Affiliation: 

Department of Cancer Biology, Dana Farber Cancer Institute, 44 Binney Street, Boston, Massachusetts 02115, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
BETA-DYSTROGLYCAN	P	15	Homo sapiens	Mutation(s): 0  Gene Names: DAG1
Find proteins for Q14118 (Homo sapiens) Go to Gene View: DAG1 Go to UniProtKB:  Q14118

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
DYSTROPHIN	A	261	Homo sapiens	Mutation(s): 0  Gene Names: DMD
Find proteins for P11532 (Homo sapiens) Go to Gene View: DMD Go to UniProtKB:  P11532

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2 Å
• R-Value Free: 0.249 
• R-Value Work: 0.197 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 48.680	α = 90.00
b = 67.050	β = 90.00
c = 83.840	γ = 90.00

Software Package:

Software Name	Purpose
DM	phasing
DENZO	data reduction
DM	model building
SCALEPACK	data scaling
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-02-11 
• Released Date: 2000-08-23 
• Deposition Author(s): Huang, X., Poy, F., Zhang, R., Joachimiak, A., Sudol, M., Eck, M.J.

Revision History 

• Version 1.0: 2000-08-23
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance