Figure 6.

Helix dynamics illustrated by separated local-field PISEMA spectra. (A) Data and PISA wheel for GW^5,19ALP23 are shown. (B) The PISA wheel from (A) is repeated along with data showing extensive motional averaging for W^2,22W^5,19ALP23 (blue contours) and for GW^4,20ALP23 (black contours). Each sample is oriented in DMPC/DHoPC bicelles with β = 90° and is ¹⁵N-labeled in residues 13–17 (assigned as indicated). The spectra for GW^5,19ALP23 and W^2,22W^5,19ALP23 were recorded previously (17, 18). To see this figure in color, go online.