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  1. 010 学術雑誌論文
  2. 桑島, 邦博 / KUWAJIMA, Kunihiro

Binding Strength of Calcium Ion to Bovine α-Lactalbnmin

https://ir.soken.ac.jp/records/4136
https://ir.soken.ac.jp/records/4136
8b76ea81-7fd5-4388-a753-6698d19ff935
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-01-09
タイトル
タイトル Binding Strength of Calcium Ion to Bovine α-Lactalbnmin
タイトル
タイトル Binding Strength of Calcium Ion to Bovine α-Lactalbnmin
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 HAMANO, Masaki

× HAMANO, Masaki

HAMANO, Masaki

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NITTA, Katsutoshi

× NITTA, Katsutoshi

NITTA, Katsutoshi

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KUWAJIMA, Kunihiro

× KUWAJIMA, Kunihiro

KUWAJIMA, Kunihiro

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SUGAI, Shintaro

× SUGAI, Shintaro

SUGAI, Shintaro

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著者別名 桑島, 邦博

× 桑島, 邦博

桑島, 邦博

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抄録
内容記述タイプ Abstract
内容記述 A Ca2+-sensitive electrode was used for determination of the binding strength of Ca2+ to bovine α-lactalbumin in 60 mM Tris buffer (pH 7.8–8.5) in the presence of various concentrations of NaCl. The dependence of the apparent binding constant on the concentration of NaCl was consistent with competitive binding of Ca2+ and Na+, and the binding constants of Ca2+ and Na+ were found to be 2.2 (±0.5)× 107M−1 and 99 (±33) M−1, respectively, at 37°C and pH 8.0. The temperature dependence of the binding constant of Ca2+ was examined between 30 and 45°C; extrapolation of the dependence led to a binding constant of ˜1 × 107 M−1 at pH 8.4 and 25°C. The electrostatic contribution and conformational effect of the protein were also taken into consideration, and the intrinsic binding constant of Ca2+ to native a-lactalbumin was calculated to be (1.2–1.5) × 1010 M−1 at 37°C and pH 8.0.
書誌情報 Journal of Biochemistry
en : Journal of Biochemistry

巻 100, 号 6, p. 1617-1622, 発行日 1986
出版者
出版者 Oxford University Press
ISSN
収録物識別子タイプ ISSN
収録物識別子 0021924X
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1093/oxfordjournals.jbchem.a121869
関連名称 10.1093/oxfordjournals.jbchem.a121869
権利
権利情報 © 1986, the Japanese Biochemical Society
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