Raman spectrum of model peptide (Ala-Gly)15 for Bombyx mori silk fibroin with Silk I form and theoretical calculation according to repeated β-turn type II structural model

Tsutomu Yamane, Masashi Sonoyama, Tetsuo Asakura, Yukio Furukawa

    Research output: Contribution to journalArticle

    Abstract

    We observed Raman spectra of Silk I and Silk II powders of (Ala-Gly)15, which is a model peptide of crystalline region of Bombyx mori silk fibroin. Additionally Raman spectra of Ac-(Gly-Ala)4-NHMe and Ac-(Gly-Ala)3-NHMe with Silk I and Silk II forms were calculated according to the repeated β-turn type II structural model and β-sheet model, respectively. The ab initio molecular orbital calculation was used for the theoretical calculation. The calculated results could reproduce the spectra. Especially, in silk I form, observation of splitting of amide I and III bands was in agreement with the predicted bands according to the repeated β-turn type II structural model.

    Original languageEnglish
    Pages (from-to)327-331
    Number of pages5
    JournalSen'i Gakkaishi
    Volume58
    Issue number9
    DOIs
    Publication statusPublished - 2002 Sep

    Fingerprint

    Fibroins
    Silk
    Peptides
    Raman scattering
    Orbital calculations
    Molecular orbitals
    Amides
    Powders
    Crystalline materials

    ASJC Scopus subject areas

    • Chemical Engineering (miscellaneous)
    • Industrial and Manufacturing Engineering
    • Materials Science (miscellaneous)
    • Polymers and Plastics

    Cite this

    Raman spectrum of model peptide (Ala-Gly)15 for Bombyx mori silk fibroin with Silk I form and theoretical calculation according to repeated β-turn type II structural model. / Yamane, Tsutomu; Sonoyama, Masashi; Asakura, Tetsuo; Furukawa, Yukio.

    In: Sen'i Gakkaishi, Vol. 58, No. 9, 09.2002, p. 327-331.

    Research output: Contribution to journalArticle

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    abstract = "We observed Raman spectra of Silk I and Silk II powders of (Ala-Gly)15, which is a model peptide of crystalline region of Bombyx mori silk fibroin. Additionally Raman spectra of Ac-(Gly-Ala)4-NHMe and Ac-(Gly-Ala)3-NHMe with Silk I and Silk II forms were calculated according to the repeated β-turn type II structural model and β-sheet model, respectively. The ab initio molecular orbital calculation was used for the theoretical calculation. The calculated results could reproduce the spectra. Especially, in silk I form, observation of splitting of amide I and III bands was in agreement with the predicted bands according to the repeated β-turn type II structural model.",
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    AU - Yamane, Tsutomu

    AU - Sonoyama, Masashi

    AU - Asakura, Tetsuo

    AU - Furukawa, Yukio

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