Abstract
Src-homology 3 (SH3) domains mediate signal transduction by binding to proline- rich motifs in target proteins. We have determined the high-resolution NMR structure of the complex between the amino-terminal SH3 domain of GRB2 and a ten amino acid peptide derived from the guanine nucleotide releasing factor Sos. The NMR data show that the peptide adopts the conformation of a left-handed polyproline type II helix and interacts with three major sites on the SH3 domain. The orientation of the bound peptide is opposite to that of proline-rich peptides bound to the SH3 domains of Abl, Fyn and p85.
Original language | English |
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Pages (from-to) | 891-997 |
Number of pages | 107 |
Journal | Nature Structural Biology |
Volume | 1 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 1994 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Structural Biology
- Biochemistry
- Genetics