Pressure-Induced Amide I' Frequency Shift of Model Compound of Proteins in Water

• Takekiyo Takahiro

  Department of Applied Chemistry, National Defense Academy

• Yoshimura Yukihiro

  Department of Applied Chemistry, National Defense Academy

• Okuno Akira

  Department of Applied Chemistry, Ritsumeikan University

• Kato Minoru

  Department of Applied Chemistry, Ritsumeikan University

• Taniguchi Yoshihiro

  Department of Applied Chemistry, Ritsumeikan University

抄録

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.

収録刊行物

• 高圧バイオサイエンスとバイオテクノロジー

  高圧バイオサイエンスとバイオテクノロジー 1 (1), 47-52, 2007

  生物関連高圧研究会

キーワード

• pressure effect
• amide I' band
• protein
• water

詳細情報

• CRID: 1390001205286104576
• NII論文ID: 130004951202
• DOI: 10.11229/hpbb.1.47
• ISSN: 18821723
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可