NMR Chemical Shift Mapping of SH2 Peptide Interactions. Journal Article uri icon



  • Heteronuclear single quantum coherence (HSQC) nuclear magnetic resonance (NMR) experiments offer a rapid and high resolution approach to gaining binding and conformational insights into a protein-peptide interaction. By tracking 1H and 15N chemical shift changes over the course of a peptide titration into isotopically labeled protein, amide NH pairs of amino acids whose chemical environment changes upon peptide binding can be identified. When mapped onto a structure of the protein, this approach can identify the peptide-binding interface or regions undergoing conformation changes within a protein upon ligand binding. Monitoring NMR chemical shift changes can also serve as a screening technique to identify novel interaction partners for a protein or to determine the binding affinity of a weak protein-peptide interaction. Here, we describe the application of NMR chemical shift mapping to the study of peptide binding to the C-terminal SH2 domain of PLCĪ³1.

publication date

  • January 1, 2017

Full Author List

  • McKercher MA; Wuttke DS

Other Profiles

Additional Document Info

start page

  • 269

end page

  • 290


  • 1555