Experimental and Computational Protocols for Studies of Cross-Seeding Amyloid Assemblies

Methods Mol Biol. 2018:1777:429-447. doi: 10.1007/978-1-4939-7811-3_27.

Abstract

Alzheimer's disease (AD) and type 2 diabetes (T2D) are two common protein aggregation diseases. Compelling evidence has shown a link between AD and T2D, which may derive from interspecies cross-sequence interactions between amyloid-β peptide (Aβ), associated with AD, and human islet amyloid polypeptide (hIAPP), associated with T2D. Herein, we present experimental and computational protocols and tools to study the aggregate structures and kinetics, conformational conversion, and molecular interactions of Aβ-hIAPP mixtures. These protocols could be generally applied to other cross-seeding behaviors of amyloid peptides.

Keywords: Alzheimer disease; Amyloid peptides; Aβ; Cross-seeding; Diabetes; hIAPP.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amyloid / chemistry*
  • Amyloid beta-Peptides / chemistry*
  • Amyloid beta-Peptides / isolation & purification
  • Humans
  • Microscopy
  • Models, Molecular
  • Molecular Dynamics Simulation
  • Monte Carlo Method
  • Protein Multimerization
  • Spectrum Analysis

Substances

  • Amyloid
  • Amyloid beta-Peptides