Specificity of anti-synuclein sera PER1, PER4, and PER5 for recombinant synucleins. Gels were stained with Coomassie brilliant blue (A) or immunoblotted with PER1 (B), PER4 (C), and PER5 (D). Lanes: 1, recombinant α-synuclein; 2, recombinant β-synuclein; 3, recombinant γ-synuclein. Molecular mass is shown to the left in Mr × 10−3.