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pH and microwave power effects on the electron spin resonance spectra of Rhus vernicifera laccase and Cucumis sativus ascorbate oxidase
http://hdl.handle.net/2297/16746
http://hdl.handle.net/2297/16746c6023591-dac1-41ec-9a20-ebcc3b669c51
名前 / ファイル | ライセンス | アクション |
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SC-PR-SAKURAI-T-37.pdf (793.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | pH and microwave power effects on the electron spin resonance spectra of Rhus vernicifera laccase and Cucumis sativus ascorbate oxidase | |||||
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 | |||||
著者 |
Sakurai, Takeshi
× Sakurai, Takeshi× Suzuki, Shinnichiro× Chikira, Makoto |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学理工研究域物質化学系 | |||||
書誌情報 |
Journal of Biochemistry 巻 107, 号 1, p. 37-42, 発行日 1990-01-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0021-924X | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00694073 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1093/oxfordjournals.jbchem.a123008 | |||||
出版者 | ||||||
出版者 | 日本生化学会 = Japanese Biochemical Society | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The present study shows that the electron spin resonance (ESR) spectral features of Rhus laccase depend considerably on the pH value of the enzyme solution and the irradiated microwave power. Because of the local protein structure change, the type 1 copper is appreciably autoreduced at alkaline pH as monitored both by the ESR and absorption spectroscopies. In addition, the ESR signal of the type 2 copper, especially its g perpendicular to region, becomes prominent at alkaline pH. Protein dissociation from a water or an imidazole group coordinated to the type 2 copper is supposed to be responsible for this behavior. Besides above pH effects, the g perpendicular to component of the type 2 copper ESR signal is obscured with rising microwave power level. The power saturation behavior of native laccase and its derivatives reveals that the type 2 copper is more easily saturated than the type 1 copper. Cucumis ascorbate oxidase also exhibits similar behavior upon pH variation and microwave power saturation. | |||||
権利 | ||||||
権利情報 | © 1990 Japanese Biochemical Society | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://jb.oxfordjournals.org/cgi/content/abstract/107/1/37 |