Solution structures of rat amylin peptide: simulation, theory, and experiment.

ABSTRACT: Amyloid deposits of amylin in the pancreas are an important characteristic feature found in patients with Type-2 diabetes. The aggregate has been considered important in the disease pathology and has been studied extensively. However, the secondary structures of the individual peptide have not been clearly identified. In this work, we present detailed solution structures of rat amylin using a combination of Monte Carlo and molecular dynamics simulations. A new Monte Carlo method is presented to determine the free energy of distinct biomolecular conformations. Both folded and random-coil conformations of rat amylin are observed in water and their relative stability is examined in detail. The former contains an alpha-helical segment comprised of residues 7-17. We find that at room temperatur

SUBMITTER: Reddy AS 

PROVIDER: S-EPMC2814214 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature