... a-synuclein with100 lM neurotoxin; lane 2, a-synuclein with 200 lM neurotoxin;lane 3, a-synuclein with 100 lM neurotoxin and 50 lM dopamine;lane 4, a-synuclein with 200 lM neurotoxin and 50 ... with 100 lM neurotoxin; lane 3, with 200 lM neu-rotoxin; lane 4, with 100 lM neurotoxin and 50 lM dopamine;lane 5, with 200 lM neurotoxin and 50 lM dopamine. (D) Lane M,prestained molecular ... MPP+ and (D)200 lM MPP+. Samples are a-synucleinalone (s, solid line), in the presence of100 lM neurotoxin (•, dotted line), in thepresence of 200 lM neurotoxin ( , dottedline) and in...