Role of aromatic amino acids in amyloid self-assembly. Academic Article uri icon

abstract

  • Amyloids are proteins of a cross-β structure found as deposits in several diseases and also in normal tissues (nails, spider net, silk). Aromatic amino acids are frequently found in amyloid deposits. Although they are not indispensable, aromatic amino acids, phenylalanine, tyrosine and tryptophan, enhance significantly the kinetics of formation and thermodynamic stability, while tape or ribbon-like morphology is represented in systems with experimentally detected π-π interactions between aromatic rings. Analysis of geometries and energies of the amyloid PDB structures indicate the prevalence of aromatic-nonaromatic interactions and confirm that aromatic-aromatic interactions are not crucial for the amyloid formation.

published proceedings

  • Int J Biol Macromol

author list (cited authors)

  • Stanković, I. M., Niu, S., Hall, M. B., & Zarić, S. D

citation count

  • 20

complete list of authors

  • Stanković, Ivana M||Niu, Shuqiang||Hall, Michael B||Zarić, Snežana D

publication date

  • August 2020