Fig. 2 (abstract P6).

Example alpha and beta carbon shift bivariate distributions. C_α shifts are shown along the x-axis, while C_β shifts are shown along the y-axis. Distributions are shown cysteine distribution is dramatically different from the rest amino acid types, and treated it as single residue is incorrect. The bottom row shows the separated cysteine basing on oxidation states, which provide more usage to estimating reference of protein NMR