Abstract
Protein misfolding leading to aggregation and amyloid fibril formation has been implicated in a variety of neurodegenerative disorders. Under suitably designed in vitro conditions, intermolecular contacts between polypeptide chains mediated by various non-covalent interactions result in the formation of oligomeric species that are eventually sequestered into β-sheet-rich amyloid fibrils. Owing to the inherent heterogeneity and complexity of protein aggregation processes, detection and structural characterization of the early, transiently-populated cytotoxic oligomeric intermediates during the amyloid fibrillation cascade still poses a formidable challenge. Fluorescence spectroscopy is an extremely sensitive multiparametric technique that provides simultaneous information about the conformational- and size changes for both early oligomeric species as well as for the large-sized aggregates. In this review, we emphasize recent and selected examples on the application of various fluorescence spectroscopic techniques in the study of protein aggregation. Additionally, we also summarize the recent results on protein aggregation studies using fluorescence spectroscopy from our laboratory.
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Acknowledgments
We thank IISER Mohali for financial support and the past and present members of the Mukhopadhyay laboratory for their studies on protein aggregation using fluorescence spectroscopy. M.B. thanks the Department of Science and Technology (DST) Women Scientists’ Scheme and S.M. thanks the Council of Scientific and Industrial Research (CSIR), India for research grants.
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Bhattacharya, M., Mukhopadhyay, S. (2016). Studying Protein Misfolding and Aggregation by Fluorescence Spectroscopy. In: Geddes, C. (eds) Reviews in Fluorescence 2015. Reviews in Fluorescence, vol 8. Springer, Cham. https://doi.org/10.1007/978-3-319-24609-3_1
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