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Updated: Aug 21, 2026

Detection of Disease-associated α-synuclein by Enhanced ELISA in the Brain of Transgenic Mice Overexpressing Human A53T Mutated α-synuclein
Published on: May 30, 2015
Abnormal migration of human wild-type alpha-synuclein upon gel electrophoresis
Charbel E-H Moussa1, Christophe Wersinger, Milan Rusnak
1Department of Pediatrics, Georgetown University, Washington, DC 20007, USA.
Abstract:
Alpha-synuclein aggregates have been linked to the pathogenesis of Parkinson's disease (PD), with Lewy bodies (LBs) and Lewy neurites (LNs) constituting the pathological hallmarks in the brains of patients with PD and dementia with LBs. LBs are formed by the conversion of soluble monomers of alpha-synuclein into insoluble aggregates. Here we report an abnormal electrophoretic mobility, at a higher molecular weight (MW) than the expected theoretical MW, of both recombinant histidine-tagged human alpha-synuclein, human alpha-synuclein expressed in SH-SY5Y human neuroblastoma cells or Ltk(-) fibroblasts, and rat brain alpha-synuclein, on SDS-PAGE polyacrylamide, but not on Nu-PAGE gradient peptide, gels, suggesting possible alpha-synuclein data misinterpretations associated with gel electrophoresis. These studies raise important considerations about the type of protein gel electrophoresis system suitable to study the alterations of alpha-synuclein associated with neurodegeneration, PD and other synucleinopathies.
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