IR-study on stacking manner of peptide nanorings in peptide nanotubes

Yukiko Nagai, Tsutomu Nakanishi, Hajime Okamoto, Kyozaburo Takeda, Yukio Furukawa, Kenji Usui, Hisakazu Mihara

    研究成果: Article

    7 引用 (Scopus)

    抄録

    We here report our theoretical as well as experimental studies on the stacking manner of peptide nanorings (PNRs) in peptide nanotubes (PNTs). We focus on the molecular vibrations of N-H and C=O stretching modes and discuss this subject via their infrared (IR) spectroscopy, because PNTs are formed by the inter-ring H bonds between the adjacent PNRs via -N-H⋯O=C-. Symmetry analysis based on group theory reveals that parallel stacking causes two IR active modes in these molecular vibrations while three modes are active in the antiparallel stacking. This difference in the number of IR active modes is determined only by the stacking manner and not by the number of amino acid residues composing the PNRs. By using two typical PNRs of cyclo[-(L-Gln-D-Ala) 3] and cyclo[-(L-Gln-D-Ala)4], we further studied the favorable stacking manners of PNRs via IR observation. Our IR experiments as well as the ab initio energetics show that the former PNRs create a PNT by stacking themselves in parallel while the latter PNRs do so by stacking themselves in an antiparallel manner.

    元の言語English
    ページ(範囲)7654-7661
    ページ数8
    ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    44
    発行部数10
    DOI
    出版物ステータスPublished - 2005 10 11

    Fingerprint

    Nanorings
    Nanotubes
    Peptides
    peptides
    nanotubes
    Infrared radiation
    Molecular vibrations
    Group theory
    vibration
    group theory
    Stretching
    amino acids
    Amino acids
    Infrared spectroscopy
    infrared spectroscopy

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    これを引用

    IR-study on stacking manner of peptide nanorings in peptide nanotubes. / Nagai, Yukiko; Nakanishi, Tsutomu; Okamoto, Hajime; Takeda, Kyozaburo; Furukawa, Yukio; Usui, Kenji; Mihara, Hisakazu.

    :: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 巻 44, 番号 10, 11.10.2005, p. 7654-7661.

    研究成果: Article

    Nagai, Yukiko ; Nakanishi, Tsutomu ; Okamoto, Hajime ; Takeda, Kyozaburo ; Furukawa, Yukio ; Usui, Kenji ; Mihara, Hisakazu. / IR-study on stacking manner of peptide nanorings in peptide nanotubes. :: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2005 ; 巻 44, 番号 10. pp. 7654-7661.
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