Title : Pathological hydrogen peroxide triggers the fibrillization of wild-type SOD1 via sulfenic acid modification of Cys-111.

Pub. Date : 2018 Jan 22

PMID : 29358575






4 Functional Relationships(s)
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1 Pathological hydrogen peroxide triggers the fibrillization of wild-type SOD1 via sulfenic acid modification of Cys-111. Cysteine superoxide dismutase 1 Homo sapiens
2 Using an anti-dimedone antibody that detects sulfenic acid modification of proteins, we found that Cys-111 in wild-type SOD1 is oxidized to C-SOH by pathological concentration of H2O2, followed by the formation of sulfenic acid modified SOD1 oligomers. Cysteine superoxide dismutase 1 Homo sapiens
3 Using an anti-dimedone antibody that detects sulfenic acid modification of proteins, we found that Cys-111 in wild-type SOD1 is oxidized to C-SOH by pathological concentration of H2O2, followed by the formation of sulfenic acid modified SOD1 oligomers. Cysteine superoxide dismutase 1 Homo sapiens
4 Thus, we propose that H2O2 at pathological concentrations triggers the fibrillization of wild-type SOD1 and subsequently induces SOD1 toxicity and TDP-43 toxicity in neuronal cells via sulfenic acid modification of Cys-111 in SOD1. Cysteine superoxide dismutase 1 Homo sapiens