Protein-structure-based combinatorial chemistry has recently been used to discover several ligands containing non-peptide binding elements to the Src SH3 domain. The encoded library used has the form Cap-M1-M2-M3-PLPPLP, in which the Cap and Mi's are ...
Protein-structure-based combinatorial chemistry has recently been used to discover several ligands containing non-peptide binding elements to the Src SH3 domain. The encoded library used has the form Cap-M1-M2-M3-PLPPLP, in which the Cap and Mi's are composed of a diverse set of organic monomers. The PLPPLP portion provided a structural bias directing the non-peptide fragment Cap-M1-M2-M3 to the SH3 specificity pocket. Fifteen ligands were selected from > 1.1 million distinct compounds. The structural basis for selection was unknown.
Related Citations: 
Protein Structure-Based Combinatorial Chemistry: Discovery of Non-Peptide Binding Elements to Src SH3 Domain Combs, A.P.,Kapoor, T.M.,Feng, S.,Chen, J.K.,Daude-Snow, L.F.,Schreiber, S.L. (1996) J.Am.Chem.Soc. 118: 287
Specific Interactions Outside the Proline-Rich Core of Two Classes of Src Homology 3 Ligands Feng, S.,Kasahara, C.,Rickles, R.J.,Schreiber, S.L. (1995) Proc.Natl.Acad.Sci.USA 92: 12408
Structural Basis for the Binding of Proline-Rich Peptides to SH3 Domains Yu, H.,Chen, J.K.,Feng, S.,Dalgarno, D.C.,Brauer, A.W.,Schreiber, S.L. (1994) Cell 76: 933
Two Binding Orientations for Peptides to the Src SH3 Domain: Development of a General Model for SH3-Ligand Interactions Feng, S.,Chen, J.K.,Yu, H.,Simon, J.A.,Schreiber, S.L. (1994) Science 266: 1241
Solution Structure of the SH3 Domain of Src and Identification of its Ligand-Binding Site Yu, H.,Rosen, M.K.,Shin, T.B.,Seidel-Dugan, C.,Brugge, J.S.,Schreiber, S.L. (1992) Science 258: 1665
Organizational Affiliation: 
Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Harvard University, MA 02138, USA.