SAXS/WAXS Investigation of Amyloid-β(16-22) Peptide Nanotubes

Front Bioeng Biotechnol. 2021 Mar 24:9:654349. doi: 10.3389/fbioe.2021.654349. eCollection 2021.

Abstract

This brief report presents an X-ray scattering investigation of self-assembled nanotubes formed by a short peptide. X-ray scattering methods enable multiscale structural elucidation of these nanotubes in solution under the same conditions involved in the self-assembly process. In particular, the dimensions of nanotubes and the crystalline organization within their walls can be determined quantitatively. This is illustrated in the case of amyloid-β(16-22) peptide nanotubes.

Keywords: SAXS; X-ray scattering; peptide nanoribbons; peptide nanotubes; peptide self-assembly.