Abstract
Three-dimensional structures of complexes of the SH2 domain of the v-src oncogene product with two phosphotyrosyl peptides have been determined by X-ray crystallography at resolutions of 1.5 and 2.0 Å, respectively. A central antiparallel β-sheet in the structure is flanked by two α-helices, with peptide binding mediated by the sheet, intervening loops and one of the helices. The specific recognition of phosphotyrosine involves amino-aromatic interactions between lysine and arginine side chains and the ring system in addition to hydrogen-bonding interactions with the phosphate.
Original language | English |
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Pages (from-to) | 646-653 |
Number of pages | 8 |
Journal | Nature |
Volume | 358 |
Issue number | 6388 |
DOIs | |
State | Published - 1992 |
Externally published | Yes |