Journal
FEBS LETTERS
Volume 500, Issue 3, Pages 105-108Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-5793(01)02597-2
Keywords
aggregation; rotenone; paraquat; partially folded intermediate
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Parkinson's disease involves intracellular deposits of alpha -synuclein in the form of Lewy bodies and Lewy neurites, The etiology of the disease is unknown, however, several epidemiological studies have implicated environmental factors, especially pesticides. Here we show that several pesticides, including rotenone, dieldrin and paraquat, induce a conformational change in alpha -synuclein and significantly accelerate the rate of formation of alpha -synuclein fibrils in vitro, We propose that the relatively hydrophobic pesticides preferentially bind to a partially folded intermediate conformation of alpha -synuclein, accounting for the observed conformational changes, and leading to association and subsequent fibrillation, These observations suggest one possible underlying molecular basis for Parkinson's disease. (C) 2001 Published by Elsevier Science B.V. on behalf of the Federation of European Biochemical Societies.
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