2017年
過冷却促進(抗氷核)ポリフェノールによる 組換え氷核タンパク質の氷核活性阻害
低温生物工学会誌
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- 巻
- 63
- 号
- 2
- 開始ページ
- 155
- 終了ページ
- 160
- 記述言語
- 日本語
- 掲載種別
- DOI
- 10.20585/cryobolcryotechnol.63.2_155
- 出版者・発行元
- 低温生物工学会
It is known that some polyphenols with anti-ice nucleation activity decrease freezing temperature of thesolution containing ice nucleators, resulting in maintenance of supercooling state of the solution for a longperiods. In the previous study, recombinant proteins of Erwinia ananas ice nucleation protein, inaA withhistidine-tag (His-inaA) were expressed in Escherichia coli cells and ice nucleation activity was detected inthe cell suspension. In the present study, the purification and the characterization of His-inaA proteins fromtransformed E. coli cells were done to study the mechanism of anti-ice nucleation of these polyphenols insolutions containing inaA. When the extracts of E. coli cells expressing His-inaA were fractionated intosoluble, membrane and inclusion body fractions, ice nucleation activities were detected in all three fractions.Then, His-inaA was purified from the soluble fraction by affinity column chromatography and ice nucleationactivity of the purified His-inaA fraction was detected. Further, it is confirmed that anti-ice nucleationactivity of polyphenols was detected in solutions containing His-inaA.
- リンク情報
- ID情報
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- DOI : 10.20585/cryobolcryotechnol.63.2_155
- ISSN : 1340-7902
- CiNii Articles ID : 130006706888
- CiNii Books ID : AN10448734