Figure 3.
Structures of amyloid fibrils composed of longer polypeptide chains. (a) A gallery of structures of amyloid fibrils formed by proteins. For Aβ1-42, the top and side views of multiple polypeptide chains that make up an amyloid fibril are displayed. For the remaining proteins, the three-dimensional structures of polypeptide chains that make up a single layer along the fibril axis are displayed. (b) A schematic image representing the fundamental architecture of amyloid fibrils composed of long polypeptide chains.