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Capillary Electrophoresis Study on the Dimeric SOD Enzyme in the Presence of Ascorbic Acid

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Capillary Electrophoresis Study on the Dimeric SOD Enzyme in the Presence of Ascorbic Acid

Keita Abe and Yuzo Nishida*

Department of Chemistry, Faculty of Science, Yamagata University, Yamagata 990-8560, Japan.

Fax: +81-0 23-6 28-45 91.

E-mail: yuzo@sci.kj.yamagata-u.ac.jp

* Author for correspondence and reprint requests Z. Naturforsch.63 c, 151Ð153 (2008);

received September 24, 2007

A Notable decrease of the peak intensity of the capil- lary electrophoregram due to the dimeric SOD molecule was observed when a solution containing copper(II) chloride and ascorbic acid was added to the SOD solu- tion, indicating that the capillary electrophoresis method is useful to detect the dissociation of the dimeric SOD molecule in solution, and that dissociation of the dimeric SOD molecule is induced by the presence of hydrogen peroxide. The present results may give reasonable coun- termeasures towards the sporadic amyotrophic lateral sclerosis in future.

Key words: Dissociation of Dimeric SOD, Capillary Electrophoresis, Hydrogen Peroxide

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