Key points are not available for this paper at this time.
The detection of 13C is now amenable to high-resolution NMR spectroscopy of proteins. A protocol for 13C homonuclear decoupling in multidimensional experiments correlates carbonyl, Cα, and Cβ nuclei (see picture). These techniques also allow the detection of side-chain nuclei in exclusively heteronuclear experiments, and thus the complete assignment of proteins.
Bermel et al. (Thu,) studied this question.