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. 2012 Dec 13;7(12):e50027. doi: 10.1371/journal.pone.0050027

Table 1. Secondary structure content of aS dimers as determined by FTIR spectroscopy analysis reported in Fig. 2.

Wavenumber a (cm−1) Structural Assignment aS % b NN % b CC % b NC % b DC % b 1–99 % b
1530 β-sheet/turns 10 3 17 5 3 -
1560–1568 Glu (COO) 12 25 25 22 14 8
1580–1586 Asp (COO) 9 5 6 7 7 -
1610–1612 Tyr/β-sheet - 12 21 12 5 -
1640 Random 55 38 17 42 54 69
1656–1671 Turns 14 17 14 12 17 23
a

Peak position of the amide I band components, as deduced by the second derivative spectra.

b

Percentage area of the amide I band components, as obtained by integrating the area under each deconvoluted band.