The structural flexibility of the shank1 PDZ domain is important for its binding to different ligands
Lee, J.H., Park, H., Park, S.J., Kim, H.J., Eom, S.H.(2011) Biochem Biophys Res Commun 407: 207-212
- PubMed: 21376703 
- DOI: 10.1016/j.bbrc.2011.02.141
- Primary Citation of Related Structures:  
3QJM, 3QJN - PubMed Abstract: 
The PDZ domain of the shank protein interacts with numerous cell membrane receptors and cytosolic proteins via the loosely defined binding motif X-(Ser/Thr)-X-Φ-COOH (Φ represents hydrophobic residues) at the carboxyl terminus of its target protein. This enables shank to serve as a membrane-associated scaffold for the assembly of signaling complexes ...