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When Proteostasis Goes Bad: Protein Aggregation in the Cell

By M Radwan, RJ Wood, X Sui and DM Hatters


Protein aggregation is a hallmark of the major neurodegenerative diseases including Alzheimer's, Parkinson's, Huntington's and motor neuron and is a symptom of a breakdown in the management of proteome foldedness. Indeed, it is remarkable that under normal conditions cells can keep their proteome in a highly crowded and confined space without uncontrollable aggregation. Proteins pose a particular challenge relative to other classes of biomolecules because upon synthesis they must typically follow a complex folding pathway to reach their functional conformation (native state). Non-native conformations, including the unfolded nascent chain, are highly prone to aberrant interactions, leading to aggregation. Here we review recent advances in knowledge of proteostasis, approaches to monitor proteostasis and the impact that protein aggregation has on biology. We also include discussion of the outstanding challenges. © 2017 IUBMB Life, 69(2):49-54, 2017

Publisher: 'Wiley'
Year: 2017
DOI identifier: 10.1002/iub.1597
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