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- W4323322124 abstract "Elastin-like peptides (ELPs) are artificially derived intrinsically disordered proteins (IDPs) mimicking the hydrophobic repeat unit in the protein elastin. ELPs are characterized by a lower critical solution temperature (LCST) in aqueous media. Here, we investigate the sequence GVG(VPGVG)3 over a wide range of temperatures (below, around, and above the LCST) and peptide concentrations employing all-atom molecular dynamics simulations, where we focus on the role of intra- and interpeptide interactions. We begin by investigating the structural properties of a single peptide that demonstrates a hydrophobic collapse with temperature, albeit moderate, because the sequence length is short. We observe a change in the interaction between two peptides from repulsive to attractive with temperature by evaluating the potential of mean force, indicating an LCST-like behavior. Next, we explore dynamical and structural properties of peptides in multichain systems. We report the formation of dynamical aggregates with coil-like conformation, in which valine central residues play an important role. Moreover, the lifetime of contacts between chains strongly depends on the temperature and can be described by a power-law decay that is consistent with the LCST-like behavior. Finally, the peptide translational and internal motion are slowed by an increase in the peptide concentration and temperature." @default.
- W4323322124 created "2023-03-07" @default.
- W4323322124 creator A5013080390 @default.
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- W4323322124 creator A5036503646 @default.
- W4323322124 creator A5047873099 @default.
- W4323322124 creator A5084370591 @default.
- W4323322124 date "2023-03-06" @default.
- W4323322124 modified "2023-10-06" @default.
- W4323322124 title "Structural and Dynamical Properties of Elastin-Like Peptides near Their Lower Critical Solution Temperature" @default.
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- W4323322124 doi "https://doi.org/10.1021/acs.biomac.3c00124" @default.
- W4323322124 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36877869" @default.
- W4323322124 hasPublicationYear "2023" @default.
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