Isolation and Characterization of an Iron-Containing Superoxide Dismutase From Water Lily, Nuphar luteum | Zendy

Marvin L. Salin | Zendy; Susan M. Bridges | Zendy

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Isolation and Characterization of an Iron-Containing Superoxide Dismutase From Water Lily, Nuphar luteum

Author(s) -

Marvin L. Salin,

Susan M. Bridges

Publication year - 1982

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.69.1.161

Subject(s) - superoxide dismutase , dismutase , chemistry , biochemistry , enzyme , corpus luteum , biology , botany , hormone

A cyanide-insensitive superoxide dismutase (EC 1.15.1.1) was purified from leaves of the water lily Nuphar luteum (L.) Sibth. and Smith Subsp. macrophyllum (Small) Beal. The enzyme had a molecular weight of 46,000 and was composed of two equally sized subunits. Metal analysis showed the protein to contain about 1 gram atom of iron per dimer. The iron-containing superoxide dismutase was sensitive to H(2)O(2) as well as to azide. Antibody to the protein did not cross-react with iron superoxide dismutase isolated from the eucaryote Brassica or with algal extracts.

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