alpha-Synuclein is a 14 kDa protein encoded by the SNCA gene that is abundantly expressed in neurons. Within the neuron, alpha-Synuclein is densely localized on presynaptic terminals, indicating a potential role in synaptic transmission. Nitration at specific tyrosine residues promotes misfolding and aggregation of alpha-Synuclein. These aggregates are a major component of Lewy bodies, characteristic lesions of neurodegenerative disorders known as synucleinopathies.
