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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Ultramicroscopy. 2016 Mar 30;165:26–33. doi: 10.1016/j.ultramic.2016.03.011

Figure 6.

Figure 6

2D synchronous map for amide III and Cα-H regions. Positive and negative regions are shown in red and blue, respectively. Diagonal autopeaks in the amide III region are indicated with the red circle for β-sheet secondary structure, green circle for α-helix and blue oval for unordered/random coil conformation. Similar representation was used for off-diagonal cross-peaks showing correlation between amide III and Cα-H. Arrows indicate correlation observed between peaks within the same region: 1) 1280/1235 cm−1, 2) 1280/1249 cm−1, and 3) 1360/1340 cm−1.