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• W4308758548 endingPage "32011" @default.
• W4308758548 startingPage "31996" @default.
• W4308758548 abstract "The biological functions of proteins closely depend on their conformational dynamics. This aspect is especially relevant for intrinsically disordered proteins (IDP) for which structural ensembles often offer more useful representations than individual conformations. Here we employ extensive enhanced sampling temperature replica-exchange atomistic simulations (TREMD) and deep learning dimensionality reduction to study the conformational ensembles of the human heat shock protein B8 and its pathological mutant K141E, for which no experimental 3D structures are available. First, we combined homology modelling with TREMD to generate high-dimensional data sets of 3D structures. Then, we employed a recently developed machine learning based post-processing algorithm, EncoderMap, to project the large conformational data sets into meaningful two-dimensional maps that helped us interpret the data and extract the most significant conformations adopted by both proteins during TREMD. These studies provide the first 3D structural characterization of HSPB8 and reveal the effects of the pathogenic K141E mutation on its conformational ensembles. In particular, this missense mutation appears to increase the compactness of the protein and its structural variability, at the same time rearranging the hydrophobic patches exposed on the protein surface. These results offer the possibility of rationalizing the pathogenic effects of the K141E mutation in terms of conformational changes." @default.
• W4308758548 created "2022-11-15" @default.
• W4308758548 creator A5007524050 @default.
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• W4308758548 date "2022-01-01" @default.
• W4308758548 modified "2023-09-26" @default.
• W4308758548 title "Combining enhanced sampling and deep learning dimensionality reduction for the study of the heat shock protein B8 and its pathological mutant K141E" @default.
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• W4308758548 doi "https://doi.org/10.1039/d2ra04913a" @default.
• W4308758548 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36380940" @default.
• W4308758548 hasPublicationYear "2022" @default.
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