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Computational approaches to understanding protein aggregation in neurodegeneration Free
Rachel L. Redler1, David Shirvanyants1, Onur Dagliyan1,2, Feng Ding1,5, Doo Nam Kim1,2, Pradeep Kota1,2,6, Elizabeth A. Proctor1,2,3, Srinivas Ramachandran1,2,7, Arpit Tandon1,2, and Nikolay V. Dokholyan1,2,3,4,*
1Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
2Program in Cellular and Molecular Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
3Curriculum in Bioinformatics and Computational Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
4Center for Computational and Systems Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
5Present address: Department of Physics and Astronomy, Clemson University, Clemson, SC, USA
6Present address: Cellular Growth Mechanisms Section, Laboratory of Cell and Developmental Signaling, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
7Present address: Division of Basic Sciences, Fred Hutchison Cancer Research Center, Seattle, WA, USA *Correspondence to:Nikolay V. Dokholyan, E-mail: dokh@unc.edu
J Mol Cell Biol, Volume 6, Issue 2, April 2014, 104-115,  https://doi.org/10.1093/jmcb/mju007
Keyword: protein aggregation, molecular dynamics, protein folding, neurodegeneration

The generation of toxic non-native protein conformers has emerged as a unifying thread among disorders such as Alzheimer,s disease, Parkinson,s disease, and amyotrophic lateral sclerosis. Atomic-level detail regarding dynamical changes that facilitate protein aggregation, as well as the structural features of large-scale ordered aggregates and soluble non-native oligomers, would contribute significantly to current understanding of these complex phenomena and offer potential strategies for inhibiting formation of cytotoxic species. However, experimental limitations often preclude the acquisition of high-resolution structural and mechanistic information for aggregating systems. Computational methods, particularly those combine both all-atom and coarse-grained simulations to cover a wide range of time and length scales, have thus emerged as crucial tools for investigating protein aggregation. Here we review the current state of computational methodology for the study of protein self-assembly, with a focus on the application of these methods toward understanding of protein aggregates in human neurodegenerative disorders.