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Development of Structural Analysis Method for Middle-Sized and Polar Molecules by VCD and ROA

Research Project

Project/Area Number 18KK0394
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionHokkaido University

Principal Investigator

Taniguchi Tohru  北海道大学, 先端生命科学研究院, 准教授 (00587123)

Project Period (FY) 2019 – 2023
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
KeywordsVCD / ROA / 理論計算 / 構造解析 / 糖 / 脂質 / キラリティー / コンフォメーション / ラマン光学活性 / QM/MM理論計算 / 分子動力学 / ヌクレオシド / 重水素 / 円二色性 / 構造決定 / 柔軟分子 / 中分子
Outline of Research at the Start

新奇分子の構造解析は研究全体のボトルネックとなりうる段階であり、特に極性分子・柔軟分子・中分子に対して実用的な解析法は限られている。代表者はこれまでVCD(赤外円二色性)分光法を用いた構造解析法を種々開発してきたが、本国際共同研究ではVCDと相補的な分光法 ROA(ラマン光学活性)を用いる。糖や脂質など各種分子についてROA計算条件を最適化し、VCDと併用で分子構造を高精度に決定する方法論を開発するとともに、得られる知見をVCD計算の最適化へとフィードバックする。また化学ラベル化によって、ラベル部位の周辺構造の情報を抽出して構造解析するROA方法論を開発する。

Outline of Final Research Achievements

Structural determination of novel molecules has often been a bottleneck of various research. Structures of polar molecules and middle-sized molecules are especially difficult to analyze by conventional techniques. In this work, we used vibrational circular dichroism and Raman optical activity spectoscopies to establish a versatile method to analyze molecular stereochemistry and conformation in a solution-state. We showed that this approach is applicable to various molecules such as sugars and lipids.

Academic Significance and Societal Importance of the Research Achievements

本研究では、溶媒と強固に相互作用する親水性官能基を有する分子群や、中分子のように構造が柔軟な分子など、従来の計算手法に基づく分光構造分析では解析困難だった各種分子群について、全体構造・部分構造を決定する新たな方法論を示した。本研究成果によって、各種分子の構造決定というボトルネックが大幅に解消されることが見込まれる。さらに、薬剤分子などの安定コンフォメーションの解析にも有効であることから、より活性の高い薬剤の開発などにも資すると期待される。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2022 2021 2019

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Int'l Joint Research] 有機化学・生化学研究所(チェコ)2022

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ロイヤルメルボルン工科大学(オーストラリア)2019

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Raman optical activity study of deuterated sugars: deuterium labelling as a tool for structural analysis2024

    • Author(s)
      Tohru Taniguchi, Davidson Obinna Agbo, Qin Yang, Josef Kapitan, Tao Wu, Shuki Oyama, Shuji Akai, Yoshinari Sawama and Petr Bour
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: - Issue: 32 Pages: 21568-21574

    • DOI

      10.1039/d4cp02406k

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vibrational Circular Dichroism Studies on Axially Chiral Carbodiimides and Allenes2023

    • Author(s)
      Taniguchi Tohru
    • Journal Title

      Synlett

      Volume: 34 Issue: 16 Pages: 1839-1844

    • DOI

      10.1055/a-2071-4411

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vibrational circular dichroism spectroscopy in the C-D, X≡Y, and X=Y=Z stretching region2023

    • Author(s)
      Taniguchi Tohru、Agbo Davidson Obinna
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 25 Issue: 42 Pages: 28567-28575

    • DOI

      10.1039/d3cp04287a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Scope and limitations of absolute configuration determination of allenic natural products using the C=C=C stretching VCD signal2023

    • Author(s)
      Taniguchi Tohru、Mutmainah、Takimoto Shu、Suzuki Takahiro、Watanabe Soichiro、Matsuda Fuyuhiko、Umezawa Taiki、Monde Kenji
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 21 Issue: 3 Pages: 569-574

    • DOI

      10.1039/d2ob01520j

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Deuterium Labelling to Extract Local Stereochemical Information by VCD Spectroscopy in C-D Stretching Region: A Case Study of Sugars2022

    • Author(s)
      Mohamad Zarif Mohd Zubir, Nurul Fajry Maulida, Yoshihiro Abe, Yuta Nakamura, Mariam Abdelrasoul, Tohru Taniguchi, Kenji Monde
    • Journal Title

      Org. Biomol. Chem.

      Volume: 20 Issue: 5 Pages: 1067-1072

    • DOI

      10.1039/d1ob02317a

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Exploration of Chromophores for VCD Couplet in Biomolecularly Transparent Infrared Region2021

    • Author(s)
      Tohru Taniguchi, Mohamad Zarif Mohd Zubir, Nobuyuki Harada, Kenji Monde
    • Journal Title

      Phys. Chem. Chem. Phys.

      Volume: 23 Issue: 48 Pages: 27525-27532

    • DOI

      10.1039/d1cp04074j

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Raman Optical Activity of Deuterated Sugars in Water2024

    • Author(s)
      Davidson Obinna Agbo, Tohru Taniguchi
    • Organizer
      化学系学協会北海道支部2024年冬季研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Use of Vibrational Circular Dichroism in the Biomolecularly Transparent Region for Structural Analysis2023

    • Author(s)
      Tohru Taniguchi, Mohamad Zarif Mohd Zubir, Davidson Obinna Agbo, Kenji Monde
    • Organizer
      Chirality2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vibrational Optical Activity of Deuterated Sugars2023

    • Author(s)
      Davidson Obinna Agbo, Tao Wu, Josef Kapitan, Tohru Taniguchi, Petr Bour
    • Organizer
      第19回国際キラル分光国際会議
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Stereostructural Analysis of flexible oxidized fatty acids by VCD spectroscopy2023

    • Author(s)
      Davidson Obinna Agbo, Naka Ida, Takuya Kitahara, Tohru Taniguchi, Kenji Monde
    • Organizer
      モレキュラー・キラリティー2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 重水素化分子のキラル分光分析2023

    • Author(s)
      谷口 透
    • Organizer
      日本薬学会第143回年会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Molecular Structural Analysis Using VCD in the 2400-1900 cm-1 Region2022

    • Author(s)
      Tohru Taniguchi
    • Organizer
      7th Vibrational Optical Activity Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 円二色性・赤外円二色性による立体構造決定の実践例と注意点2022

    • Author(s)
      谷口 透
    • Organizer
      第31回ケムステVシンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] VCD分光法を駆使した柔軟な酸化脂質とそのフッ素化体の立体構造解明2022

    • Author(s)
      谷口 透、井田南加、AGBO Davidson Obinna、門出 健次
    • Organizer
      第64回天然有機化合物討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ラマン光学活性(ROA)を用いたヌクレオシドの構造解析法の開発2021

    • Author(s)
      中村裕太、谷口透
    • Organizer
      化学系学協会北海道支部2021年冬季研究発表会
    • Related Report
      2020 Research-status Report

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Published: 2019-02-06   Modified: 2025-01-30  

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