Nitration Inhibits Fibrillation of Human α-synuclein in Vitro by Formation of Soluble Oligomers

Document Type

Article

Publication Date

2003

Digital Object Identifier (DOI)

https://doi.org/10.1016/S0014-5793(03)00367-3

Abstract

The aggregation of α-synuclein in dopaminergic neurons is a critical factor in the etiology of Parkinson's disease (PD). Oxidative and nitrative stress is also implicated in PD. We examined the effect of nitration on the propensity of α-synuclein to fibrillate in vitro. Fibril formation of α-synuclein was completely inhibited by nitration, due to the formation of stable soluble oligomers (apparently octamers). More importantly the presence of sub-stoichiometric concentrations of nitrated α-synuclein led to inhibition of fibrillation of non-modified α-synuclein. These observations suggest that nitration of soluble α-synuclein may be a protective factor in PD, rather than a causative one.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

FEBS Letters, v. 542, issue 1-3, p. 147-152

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