Pressure-Induced Amide I' Frequency Shift of Model Compound of Proteins in Water
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- Takekiyo Takahiro
- Department of Applied Chemistry, National Defense Academy
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- Yoshimura Yukihiro
- Department of Applied Chemistry, National Defense Academy
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- Okuno Akira
- Department of Applied Chemistry, Ritsumeikan University
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- Kato Minoru
- Department of Applied Chemistry, Ritsumeikan University
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- Taniguchi Yoshihiro
- Department of Applied Chemistry, Ritsumeikan University
Abstract
Pressure dependence of the amide I' frequency of model compounds of proteins having the non-ordered structure in water have been investigated by FT-IR spectroscopy. We decomposed the amide I' frequency shift into three contributions; the hydrogen bond between peptide bond and water molecules, the dihedral angles of φ and ψ, and the electrostatic interaction between the dissociation group such as the carboxyl (COOH) group and water molecules. The pressure dependence of the electrostatic interaction of the COOH group shows the largest. We proposed the possible cause for the difference in the pressure-induced amide I' frequency shifts of model compounds of proteins in water.
Journal
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- High Pressure Bioscience and Biotechnology
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High Pressure Bioscience and Biotechnology 1 (1), 47-52, 2007
Japanese Research Group of High Pressure Bioscience and Biotechnology
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Keywords
Details 詳細情報について
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- CRID
- 1390001205286104576
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- NII Article ID
- 130004951202
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- ISSN
- 18821723
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- Text Lang
- en
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed