Fig. 2: FTIR spectra of CT fiber in the amide I region.
From: Structural conversion of the spidroin C-terminal domain during assembly of spider silk fibers
a Fibers of the recombinantly produced CT domain obtained by a stress-relaxation cycle method. b Second derivative of the absorbance spectrum (black) and the fit (red) for the CT fiber. c Absorbance spectrum of the CT fiber (black), the fit (red) with the same fit model as in (b), and the fitted component bands (dotted lines)72. Other secondary structures refers to irregular, turns, bends, and other helix types.
