A novel, specific interaction involving the Csk SH3 domain and its natural ligand.
Ghose, R., Shekhtman, A., Goger, M.J., Ji, H., Cowburn, D.(2001) Nat Struct Biol 8: 998-1004
- PubMed: 11685249 
- DOI: 10.1038/nsb1101-998
- Primary Citation of Related Structures:  
1JEG - PubMed Abstract: 
C-terminal Src kinase (Csk) takes part in a highly specific, high affinity interaction via its Src homology 3 (SH3) domain with the proline-enriched tyrosine phosphatase PEP in hematopoietic cells. The solution structure of the Csk-SH3 domain in complex with a 25-residue peptide from the Pro/Glu/Ser/Thr-rich (PEST) domain of PEP reveals the basis for this specific peptide recognition motif involving an SH3 domain ...