Article
Amyotrophic lateral sclerosis-associated copper/zinc superoxide dismutase mutations preferentially reduce the repulsive charge of the proteins.
The Journal of biological chemistry - 20 Jul 2007
Sandelin Erik, Nordlund Anna, Andersen Peter M, Marklund Stefan S L, Oliveberg Mikael
Abstract excerpt
We provide bioinformatical evidence that protein charge plays a key role in the disease mechanism of amyotrophic lateral sclerosis (ALS). Analysis of 100 ALS-associated mutations in copper/zinc superoxide dismutase (SOD1) shows that these are site-selective with a preference to decrease the proteins' net repulsive charge. For each SOD1 monomer this charge is normally -6. Because biomolecules as a rule maintain...
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