@article {2020|2125, title = {Impact of the Astaxanthin, Betanin, and EGCG Compounds on Small Oligomers of Amyloid Aβ Peptide.}, journal = {J Chem Inf Model}, volume = {60}, year = {2020}, month = {2020 Mar 23}, pages = {1399-1408}, abstract = {

There is experimental evidence that the astaxanthin, betanin, and epigallocatechin-3-gallate (EGCG) compounds slow down the aggregation kinetics and the toxicity of the amyloid-β (Aβ) peptide. How these inhibitors affect the self-assembly at the atomic level remains elusive. To address this issue, we have performed for each ligand atomistic replica exchange molecular dynamic (REMD) simulations in an explicit solvent of the Aβ trimer from the U-shape conformation and MD simulations starting from Aβ dimer and tetramer structures characterized by different intra- and interpeptide conformations. We find that the three ligands have similar binding free energies on small Aβ oligomers but very distinct transient binding sites that will affect the aggregation of larger assemblies and fibril elongation of the Aβ peptide.

}, issn = {1549-960X}, doi = {10.1021/acs.jcim.9b01074}, author = {Minh Hung, Huynh and Nguyen, Minh Tho and Tran, Phuong-Thao and Truong, Vi Khanh and Chapman, James and Quynh Anh, Le Huu and Philippe Derreumaux and Vu, Van V and Ngo, Son Tung} }