TEM images of MET16 fibrils at different times and under different solution conditions.

<p>Negative stain TEM images taken from aggregation mixtures at different times: After 2 minutes, in the absence (<i>a</i>) and presence (<i>b</i>) of 1.5 M sorbitol, and after 500 minutes, in the absence (<i>c</i>) and presence (<i>d</i>) of 1.5 M sorbitol.