Dimerization, Oligomerization, and Aggregation of Human Amyotrophic Lateral Sclerosis Copper/Zinc Superoxide Dismutase 1 Protein Mutant Forms in Live Cells
Résumé
Background: Copper/zinc superoxide dismutase (SOD1) genetic mutants are associated with familial amyotrophic lateral sclerosis (ALS). Mutant proteins form abnormal aggregates. Results: We used imaging of live cells to observe SOD1 proteins harboring mutations associated with ALS. Conclusion: SOD1 mutations impair its dimerization, leading to subsequent aggregation. Significance: Analysis of the SOD1 quaternary structure in living human cells correlates with previous biochemical data.
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