Manganous Phosphate Acts as a Superoxide Dismutase | Zendy

Kevin Barnese | Zendy; Edith B. Gralla | Zendy; Diane E. Cabelli | Zendy; Joan Selverstone Valentine | Zendy

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Manganous Phosphate Acts as a Superoxide Dismutase

Author(s) -

Kevin Barnese,

Edith B. Gralla,

Diane E. Cabelli,

Joan Selverstone Valentine

Publication year - 2008

Publication title -

journal of the american chemical society

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja710162n

Subject(s) - chemistry , superoxide dismutase , enzyme , superoxide , disproportionation , catalase , antioxidant , phosphate , inorganic phosphate , biochemistry , intracellular , radical , ion , aqueous solution , catalysis , organic chemistry

A substantial body of evidence indicates that high intracellular concentrations of inorganic manganous ions render some cells resistant to ionizing radiation and provide substantial antioxidant protection to aerobic cells lacking superoxide dismutase (SOD) enzymes. We found that manganous phosphate is unique among those manganous salts studied in its ability to remove superoxide rapidly and catalytically from aqueous solution via a disproportionation mechanism that is entirely different from those of the SOD enzymes.

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