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A Novel Isoenzyme of CuZn-superoxide Dismutase from Nicotiana tobacum 被引量：1

A Novel Isoenzyme of CuZn-superoxide Dismutase from Nicotiana tobacum
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摘要 An isoenzyme of CuZnsuperoxide dismutase, denoted as CuZnSODⅢ, has been separated and purified from Nicotiana Tobacum (tobacco) leaves to apparent homogeneity. Its molecular mass is 22976.6Da. It is composed of one subunit, which is consisted of 187 amine acid residues and contains 1 copper and 0.5 zinc atom. The activation energy of the thermal denaturation process has been obtained as about 143.5kJmol-1. Meanwhile, some properties of spectra were investigated. An isoenzyme of CuZnsuperoxide dismutase, denoted as CuZnSODⅢ, has been separated and purified from Nicotiana Tobacum (tobacco) leaves to apparent homogeneity. Its molecular mass is 22976.6Da. It is composed of one subunit, which is consisted of 187 amine acid residues and contains 1 copper and 0.5 zinc atom. The activation energy of the thermal denaturation process has been obtained as about 143.5kJmol-1. Meanwhile, some properties of spectra were investigated.
作者 LiangQuanSHEN（~ ShaoMinLIU HouRongXIAO BingLeXIA QingLiangLIU
机构地区 DepartmentofChemistry DepartmentofFood
出处 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第5期543-546,共4页 中国化学快报（英文版）
关键词 Superoxide dismutase TOBACCO PURIFICATION molecular properties. Superoxide dismutase, tobacco, purification, molecular properties.
分类号 Q554.6 [生物学—生物化学]
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参考文献3

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同被引文献16

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引证文献1

Chinese Chemical Letters
2004年 第5期

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