徳島大学 教育・研究者情報データベース(EDB)

1. 徳島大学.大学院ソシオテクノサイエンス研究部.ライフシステム部門.物質機能化学(〜2016年3月31日)

1. 鈴木 良尚([徳島大学.大学院社会産業理工学研究部.理工学域.応用化学系.物質機能化学分野]/[徳島大学.理工学部.理工学科.応用化学システムコース.物質機能化学講座])

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2. 佐崎 元([北海道大学.低温科学研究所])

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3. 藤原 貴久([徳島大学.総合科学部])

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4. 塚本 雅之

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(英) Pressure effects on crystal growth of proteins

(日) 圧力を使ったタンパク質の結晶成長の研究

(英) Pressure is an attractive thermodynamic parameter. In this review, I present the great potentialities of high pressure for the promotion of studies on the enhancement of protein crystallization processes and correlation between functions and 3D structures of protein molecules. As a tool for enhancing the crystal growth, three of eight proteins show the decrease in its solubility under high pressure. Acceleration of growth and nucleation kinetics of glucose isomerase crystals occurred under high pressure. Step velocities under high pressure provided us direct information on activation volumes during incorporation processes of protein molecules at a kink site of crystals. Such activation volumes were negative in the case of glucose isomerase crystals. Precise discussion on the activation volume will be useful for understanding dehydration mechanisms during the incorporation processes. Usefulness of our standalone-type Be vessel for high-pressure protein crystallography was confirmed. With the vessel, precise high-pressure 3D structure analysis of protein crystals which are also grown under high pressure will be achieved.