A Copper-Binding Protein in Root Cytoplasm of Polygonum cuspidatum Growing in a Metalliferous Habitat
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概要
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To investigate the mechanism of Cu tolerance of Polygonum cuspidatum, the Cu-binding protein was isolated from the cytoplasm of the root and rhizome from plants growing in a Cu-contaminated habitat. A Cu-containing compound with a molecular weight of 9,500 was obtained from the cytoplasm of the root and the cortex of the rhizome by Bio-Gel P-30 column chromatography. The amount of this compound increased with increasing Cu content in the cytoplasm. The compound was purified by passage through a DEAE-Cellulofine AL column and further by high performance liquid chromatography. The purified compound was a metallothionein-like protein, because it had high contents of cysteine (31.3%) and acidic amino acids (16.5%) and a very low proportion of aromatic amino acids.
- 日本植物生理学会の論文
著者
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建部 到
Department Of Chemistry Graduate School Of Science Osaka University
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Suzuki S
Univ. Tokyo Tokyo Jpn
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Suzuki Shizuo
Faculty Of Pharmaceutical Science Science University Of Tokyo
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Nishizono Hiromi
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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Kubota Kohsuke
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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Ishii Fumi
Chemical Laboratory, Takasaki University of Economics
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Ishii Fumi
Chemical Laboratory Takasaki University Of Economics
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Kubota Kohsuke
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Nishizono Hiromi
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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