Fig. 3.
20-ms DARR spectrum of the natively grown uniformly-labelled MxiH needles. The data has been zero-filled and apodized with a shifted squared sine-bell function. The lowest contour level is plotted at 4.4 times the noise RMSD. A version of this figure where assigned peaks have been labelled on one side of the diagonal is available in Supplemental Fig. S4.