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Combinatorial Approaches to Probe the Sequence Determinants of Protein Aggregation and Amyloidogenicity

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Elucidation of the molecular determinants that drive proteins to aggregate is important both to advance our fundamental understanding of protein folding and misfolding, and as a step towards successful intervention in human disease. Combinatorial strategies enable unbiased and model-free approaches to probe sequence/structure relationships. Through the use of combinatorial methods, it is possible (i) to probe the sequence determinants of natural amyloid proteins by screening libraries of amino acid substitutions (mutations) to identify those that prevent amyloid formation; and (ii) to test new hypotheses about the mechanism of formation of amyloid fibrils by using these hypotheses to guide the design of combinatorial libraries of de novo amyloid-like proteins. Here, we review how these two approaches have been used to study the molecular determinants of protein aggregation and amyloidogenicity.

Keywords: Amyloid; combinatorial libraries; protein aggregation; protein design

Document Type: Research Article


Affiliations: Department of Chemistry, Princeton University, Princeton, NJ 08544, USA.

Publication date: 2006-03-01

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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