CuZn-Superoxide Dismutases from the Fern Equisetum arvense and the Green Alga Spirogyra sp.: Occurrence of Chloroplast and Cytosol Types of Enzyme
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概要
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CuZn-superoxide dismutase (SOD) from horsetail (Equisetum arvense) was purified to a crystalline state and that from pond scum (Spirogyra sp.) was purified to a mixture of three isozymes. The purified CuZn-SODs from the fern and the green alga show similar properties to those of the angiosperm and mammalian enzymes with respect to molecular weight, subunit structure, absorption spectrum, circular dichroism spectrum and the effect of modification of the arginine residues by 2,3-butanedione on activity. Horsetail and pond scum contained three isozymes each of CuZn-SOD. These isozymes are divided to two types: one type gave a cross-reaction with antibody raised against chloroplast-type CuZn-SOD from spinach and other type cross-reacted with antibody raised against cytosol-type CuZn-SOD from spinach. Thus, it appears that the divergence of the chloroplast and cytosol types of CuZn-SOD started at a very early stage in the molecular evolution of this enzyme.
- 日本植物生理学会の論文
著者
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Asada Kozi
The Research Institute for Food Science, Kyoto University
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Kanematsu Sumio
The Research Institute For Food Science Kyoto University
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Kanematsu Sumio
The Research Institute For Food Science. Kyoto University
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Asada Kozi
The Research Institute For Food Science Kyoto Niversity
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Asada Kozi
The Research Institute For Food Science. Kyoto University
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Asada Kozi
The Research Institulefor Fbod Science Kyoto University
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