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Figure 1.
Fig. 1. AFM images and x-ray fiber diffraction of K3
fibrils. (A) AFM images of K3 fibrils formed in 20% (vol/vol)
TFE/10 mM HCl. The scan was performed with a 25-fold diluted
sample on a freshly cleaved mica surface. The white scale bar
represents 500 nm, and the scan size is 2.5 x 2.5 µm with
512 x 512 points. (B) X-ray fiber diffraction of the K3 fibrils
with incident beam perpendicular to the fibril axis. The data
shows a typical cross-  pattern. The
diffractions corresponding to 4.72 Å (red) and 9.52
Å (blue) indicate the distance between -strands in the -sheet
and -sheet layers in the
laminated structure, respectively.
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