Structural basis for a novel intrapeptidyl H-bond and reverse binding of c-Cbl-TKB domain substrates
Ng, C., Jackson, R.A., Buschdorf, J.P., Sun, Q., Guy, G.R., Sivaraman, J.(2008) EMBO J 27: 804-816
- PubMed: 18273061 
- DOI: 10.1038/emboj.2008.18
- Primary Citation of Related Structures:  
3BUM, 3BUN, 3BUO, 3BUW, 3BUX - PubMed Abstract: 
The c-Cbl tyrosine kinase binding domain (Cbl-TKB), essentially an 'embedded' SH2 domain, has a critical role in targeting proteins for ubiquitination. To address how this domain can bind to disparate recognition mofits and to determine whether this results in variations in substrate-binding affinity, we compared crystal structures of the Cbl-TKB domain complexed with phosphorylated peptides of Sprouty2, Sprouty4, epidermal growth factor receptor, Syk, and c-Met receptors and validated the binding with point-mutational analyses using full-length proteins ...