The mechanisms of flavonoids inhibiting conformational transition of amyloid-β42 monomer: a comparative molecular dynamics simulation studyElectronic supplementary information (ESI) available. See DOI: 10.1039/c5ra12328c
Flavonoids can bind Aβ 42 to inhibit the aggregation of Aβ 42 monomer. However, the inhibitory mechanism remains unknown. Herein, comparable molecular dynamics simulations for a total of 710 ns were performed to study its mechanism. The in silico experiments revealed that flavonoids halt the conform...
Saved in:
Main Authors | , , , , |
---|---|
Format | Journal Article |
Language | English |
Published |
06.08.2015
|
Online Access | Get full text |
Cover
Loading…
Summary: | Flavonoids can bind Aβ
42
to inhibit the aggregation of Aβ
42
monomer. However, the inhibitory mechanism remains unknown. Herein, comparable molecular dynamics simulations for a total of 710 ns were performed to study its mechanism. The
in silico
experiments revealed that flavonoids halt the conformational transition of Aβ
42
monomer by inhibiting β-sheet formation; the flavonoids push the residues D23 and K28 of Aβ
42
to be exposed to solvated water, destroy the salt bridge between D23 and K28, induce the conformational distribution of Aβ
42
into local minimization energy conformational state, and generate U-shaped Aβ
42
configurations, which have more stable helixes and fewer unstable random coils. Moreover, simulation results from the free energy landscape and binding free energy analyses suggest that biflavonoids are superior to monoflavonoids in inhibiting conformational transition of Aβ
42
monomer. These findings agree with the experimental data and may help in the design of new agents that will inhibit the conformational transition of Aβ
42
so as to treat Alzheimer's disease.
Flavonoids can bind Aβ
42
to inhibit the aggregation of Aβ
42
monomer. |
---|---|
Bibliography: | 10.1039/c5ra12328c Electronic supplementary information (ESI) available. See DOI |
ISSN: | 2046-2069 |
DOI: | 10.1039/c5ra12328c |