IR probes of protein microenvironments: utility and potential for perturbation

R. Adhikary, J. Zimmermann, P.E. Dawson, F.E. Romesberg, ChemPhysChem (2014) 15:849-853.
pubpic2014adhikaryWe use IR spectroscopy to characterize nSH3 variants labeled with CN or N3 at five different positions. Like carbon-deuterium (C-D) bonds, CN and N3 can provide information about their surrounding protein environment, but unlike C-D, they tend to be perturbative and thus should be used with caution.