Induction of the .BETA.-form of poly(S-carboxymethyl-L-cysteine) and poly(S-(2-carboxyethyl)-L-cysteine) by chromium(III), iron(III), and lanthanum(III) chlorides.
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概要
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The β-form was induced by the addition of CrCl<SUB>3</SUB>, FeCl<SUB>3</SUB>, and LaCl<SUB>3</SUB> to the salt-free solutions of fully ionized poly(<I>S</I>-carboxymethyl-L-cysteine) (poly[Cys(CH<SUB>2</SUB>COOH)]) and poly[<I>S</I>-(2-carboxyethyl)-L-cysteine] (poly[Cys(CH<SUB>2</SUB>CH<SUB>2</SUB>COOH)]). The induction occurred below the equivalent point in both polypeptides. The inducing powers of the three trivalent cations were rather similar. They were weaker than Cu<SUP>2+</SUP> ions in the case of poly[Cys(CH<SUB>2</SUB>COOH)], while they were comparable with Cd<SUP>2+</SUP> ions in the case of poly[Cys(C<SUB>2</SUB>H<SUB>4</SUB>COOH)]. Cu<SUP>2+</SUP> and Cd<SUP>2+</SUP> ions were the most effective species among divalent cations in the induction of the β-form of poly[Cys(CH<SUB>2</SUB>COOH)] and Poly[Cys(C<SUB>2</SUB>H<SUB>4</SUB>COOH)], respectively.
- 公益社団法人 日本化学会の論文
著者
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Oka Kazuki
Department Of Chemistry Graduate School Of Science Chiba University
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Maeda Hiroshi
Department Of Advanced Materials Science And Engineering Graduate School Of Engineering Yamaguchi Un
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Oka Kazuki
Department of Chemistry, Faculty of Science, Nagoya University
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Ikeda Shoichi
Department of Chemistry, Faculty of Science, Nagoya University
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Ikeda Shoichi
Department of Biology, Osaka University
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