Enciso, MartaRey Gayo, Antonio2023-06-192023-06-192013-09-210021-960610.1063/1.4820793https://hdl.handle.net/20.500.14352/35371We explore the applicability of a single-bead coarse-grained molecular model to describe the competition between protein folding and aggregation. We have designed very simple and regular sequences, based on our previous studies on peptide aggregation, that successfully fold into the three main protein structural families (all-α, all-β, and α + β). Thanks to equilibrium computer simulations, we evaluate how temperature and concentration promote aggregation. Aggregates have been obtained for all the amino acid sequences considered, showing that this process is common to all proteins, as previously stated. However, each structural family presents particular characteristics that can be related to its specific balance between hydrogen bond and hydrophobic interactions. The model is very simple and has limitations, yet it is able to reproduce both the cooperative folding of isolated polypeptide chains with regular sequences and the formation of different types of aggregates at high concentrations.engjournal articlehttp://dx.doi.org/10.1063/1.4820793http://aip.scitation.org/doi/full/10.1063/1.4820793open access544amino acid sequencechemical phenomenachemical structurechemistrymolecular geneticsprotein conformationprotein foldingarticleBioinformáticaBioquímica (Química)Química física (Química)