Skip to main content
. 2004 Jan;86(1):428–434. doi: 10.1016/S0006-3495(04)74119-3

FIGURE 3.

FIGURE 3

FIGURE 3

Labeling scheme for REDOR and fpRFDR-CT solid-state NMR measurements designed to distinguish in-register parallel (a) from in-register antiparallel (b) β-sheet structures. Carbonyl 13C labels at Leu17 and Phe20 and amide 15N labels at Ala21 are indicated by brown square, cyan hexagon, and green circle outlines, respectively. The figure shows only the carbonyl and the β-carbon atom of the N-terminal acyl group, which is an acetyl group in Aβ(16–22) and an octanoyl group in octanoyl-Aβ(16–22). The figure shows the hydrogen atom on the α-carbon atom and only the β-carbon of the side chains.