The role of aromaticity, exposed surface, and dipole moment in determining protein aggregation rates.
The mechanisms by which peptides and proteins form ordered aggregates are not well understood. Here we focus on the physicochemical properties of amino acids that favor ordered aggregation and suggest a parameter-free model that is able to predict the change of aggregation rates over a large set of natural sequences. Furthermore, the results of the parameter-free model correlate well with the aggregation propensities of a set of peptides designed by computer simulations.
Tartaglia
Gian Gaetano
GG
Department of Biochemistry, University of Zurich, CH-8057, Zurich, Switzerland.
Cavalli
Andrea
A
Pellarin
Riccardo
R
Caflisch
Amedeo
A
D000544:Alzheimer Disease / Q000378:metabolism; D000596:Amino Acids / Q000737:chemistry* / Q000378:metabolism; D000818:Animals; D003198:Computer Simulation; D006801:Humans; D011328:Prions / Q000737:chemistry / Q000378:metabolism; D011487:Protein Conformation; D017510:Protein Folding; D011506:Proteins / Q000737:chemistry* / Q000378:metabolism; D013816:Thermodynamics
D000596:Amino Acids; D011328:Prions; D011506:Proteins