Peptide Inhibitors of the amyloidogenesis of IAPP: verification of the hairpin-binding geometry hypothesis

Kalkena Sivanesam, Irene Shu, Kelly N.L. Huggins, Marianna Tatarek-Nossol, Aphrodite Kapurniotu, Niels H. Andersen

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Versions of a previously discovered β-hairpin peptide inhibitor of IAPP aggregation that are stabilized in that conformation, or even forced to remain in the hairpin conformation by a backbone cyclization constraint, display superior activity as inhibitors. The cyclized hairpin, cyclo-WW2, displays inhibitory activity at substoichiometric concentrations relative to this amyloidogenic peptide. The hairpin-binding hypothesis stands confirmed.

Original languageEnglish
Pages (from-to)2575-2583
Number of pages9
JournalFEBS Letters
DOIs
StatePublished - 1 Aug 2016

Keywords

  • amyloid fibril formation
  • circular dichroism
  • cyclic β-hairpins
  • cytotoxicity inhibition
  • human pancreatic amylin
  • thioflavin T fluorescence
  • type II diabetes

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