Thermostability of Refolded Ovalbumin and<i>S</i>-Ovalbumin
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- TAKAHASHI Nobuyuki
- The Division of Applied Life Sciences, The Graduate School of Agriculture, Kyoto University
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- ONDA Maki
- The Department of Environmental Sciences, Faculty of Science, Osaka Women’s University
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- HAYASHI Kaori
- The Department of Environmental Sciences, Faculty of Science, Osaka Women’s University
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- YAMASAKI Masayuki
- The Division of Applied Life Sciences, The Graduate School of Agriculture, Kyoto University
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- MITA Tomoyoshi
- The Department of Environmental Sciences, Faculty of Science, Osaka Women’s University
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- HIROSE Masaaki
- The Division of Applied Life Sciences, The Graduate School of Agriculture, Kyoto University
書誌事項
- タイトル別名
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- Thermostability of Refolded Ovalbumin and S-Ovalbumin
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抄録
Ovalbumin, a member of the serpin superfamily, is transformed into a thermostabilized form, S-ovalbumin, during storage of shell eggs or by an alkaline treatment of the isolated protein (ΔTm=8 °C). As structural characteristics of S-ovalbumin, three serine residues (Ser164, Ser236 and Ser320) take the D-amino acid residue configuration, while the conformational change from non-thermostabilized native ovalbumin is very small (Yamasaki, M., Takahashi, N., and Hirose, M., J. Biol. Chem., 278, 35524–35530 (2003)). To assess the role of the structural characteristics on protein thermostabilization, ovalbumin and S-ovalbumin were denatured to eliminate the conformational modulation effects and then refolded. The denatured ovalbumin and S-ovalbumin were correctly refolded into the original non-denatured forms with the corresponding differential thermostability. There was essentially no difference in the disulfide structures of the native and refolded forms of ovalbumin and S-ovalbumin. These data are consistent with the view that the configuration inversion, which is the only chemical modification directly detected in S-ovalbumin so far, plays a central role in ovalbumin thermostabilization. The rate of refolding of S-ovalbumin was greater than that of ovalbumin, indicating the participation, at least in part, of an increased folding rate for thermodynamic stabilization.
収録刊行物
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 69 (5), 922-931, 2005
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390001206474762624
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- NII論文ID
- 130000030322
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- NII書誌ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL書誌ID
- 7322398
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- PubMed
- 15914911
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 使用不可