Primary Citation of Related Structures:   1AB2
PubMed Abstract: 
SH2 regions are protein motifs capable of binding target protein sequences that contain a phosphotyrosine. The solution structure of the abl SH2 product, a protein of 109 residues and 12.1 kd, has been determined by multidimensional nuclear magnetic resonance spectroscopy ...
SH2 regions are protein motifs capable of binding target protein sequences that contain a phosphotyrosine. The solution structure of the abl SH2 product, a protein of 109 residues and 12.1 kd, has been determined by multidimensional nuclear magnetic resonance spectroscopy. It is a compact spherical domain with a pair of three-stranded antiparallel beta sheets and a C-terminal alpha helix enclosing the hydrophobic core. Three arginines project from a short N-terminal alpha helix and one beta sheet into the putative phosphotyrosine-binding site, which lies on a face distal from the termini. Comparison with other SH2 sequences supports a common global fold and mode of phosphotyrosine binding for this family.
Related Citations: 
Secondary Structure of Src Homology 2 Domain of C-Abl by Heteronuclear NMR Spectroscopy in Solution Overduin, M., Mayer, B., Rios, C.B., Baltimore, D., Cowburn, D. (1992) Proc Natl Acad Sci U S A 89: 11673
Organizational Affiliation: 
Laboratories of The Rockefeller University New York, New York 10021.