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Innovative Research Visualizing Aging in Protein Molecules

Research Project

Project/Area Number 20K11646
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionKyoto University

Principal Investigator

Takata Takumi  京都大学, 複合原子力科学研究所, 准教授 (80379007)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsクリスタリン / 白内障 / アスパラギン酸 / 翻訳後修飾 / 異性化 / 加齢 / 質量分析 / MRM法 / Asp異性化 / 抗体試薬 / 結合型D-Asp / D-アミノ酸 / 老化 / 水晶体 / プロテオミクス
Outline of Research at the Start

アミノ酸はL-体またはD-体として各2種類の形態で存在するが、蛋白質内部アミノ酸に関してはL-体のみであるとされていた。しかし最近、加齢後ヒト生体内の蛋白質中で、複数のD-体のアスパラギン酸(D-Asp)が見つかった。アミノ酸のL-体からD-体への変化は、それを含む蛋白質の構造異常をもたらす。そのため、蛋白質の構造異常を原因とした疾患の発症と関与する可能性がある。より多くのD-Asp蓄積部位に関する情報を集める必要があるが、現在、蛋白質中D-Aspの同定に関しては技術的困難がある。そこで、応募者は簡便・迅速・高感度にD-Asp蓄積部位を見いだせる手法の開発に取り組む。

Outline of Final Research Achievements

The purpose of this study was to define isomerized aspartic acid residues (isomerized Asp) in proteins as novel molecular markers of protein aging, and to develop a comprehensive and highly sensitive quantitative analysis method for isomerized Asp that will make this possible. As a result, we improved a comprehensive screening method for isomeric Asp sites in human lens proteins (αA-crystallin and αB-crystallin), which accumulate with aging, and developed a highly sensitive quantitative analysis method for each. Using these methods, we confirmed that the isomerization rate increases with aging, and showed how useful Asp isomerization is in "visualization of aging phenomena at protein localities".

Academic Significance and Societal Importance of the Research Achievements

蛋白質中の異性化Aspを、従来より高い感度で測定する手法を開発した。これを眼球内の水晶体組織へと用いて、加齢に順じて増加する異性化Asp部位(水晶体蛋白質の年齢と定義できる部位)を複数見つけた。また、蛋白質の機能低下との関連性が示されたことから、本手法により評価することができる異性化Asp存在量は、それを含む蛋白質の状態を評価することにつながる可能性がある。代表的な加齢性疾患の原因となる部位には、蛋白質の異常凝集物が蓄積しているため、本手法のさらなる改良や応用が様々な加齢性疾患の早期発見、早期治療への指標となることが期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (23 results)

All 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (16 results) (of which Int'l Joint Research: 5 results,  Invited: 8 results)

  • [Journal Article] Identification of D-amino Acid Residues in Proteins Using Mass Spectrometry2022

    • Author(s)
      TAKATA Takumi
    • Journal Title

      BUNSEKI KAGAKU

      Volume: 71 Issue: 6 Pages: 319-324

    • DOI

      10.2116/bunsekikagaku.71.319

    • ISSN
      0525-1931
    • Year and Date
      2022-06-05
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isomerization of Asp is essential for assembly of amyloid-like fibrils of αA-crystallin-derived peptide2021

    • Author(s)
      Magami Kosuke、Hachiya Naomi、Morikawa Kazuo、Fujii Noriko、Takata Takumi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 4 Pages: 1-12

    • DOI

      10.1371/journal.pone.0250277

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elucidation of the mechanism of subunit exchange in αB crystallin oligomers2021

    • Author(s)
      Inoue Rintaro、Sakamaki Yusuke、Takata Takumi、Wood Kathleen、Morishima Ken、Sato Nobuhiro、Okuda Aya、Shimizu Masahiro、Urade Reiko、Fujii Noriko、Sugiyama Masaaki
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-021-82250-z

    • NAID

      120006956390

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Site‐specific rapid deamidation and isomerization in human lens αA‐crystallin in vitro2020

    • Author(s)
      Takata Takumi、Ha Seongmin、Koide Tamaki、Fujii Noriko
    • Journal Title

      Protein Science

      Volume: 29 Issue: 4 Pages: 941-951

    • DOI

      10.1002/pro.3821

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asp isomerization increases aggregation of α-crystallin and decreases its chaperone activity in human lens of various ages2020

    • Author(s)
      Fujii Noriko、Takata Takumi、Kim Ingu、Morishima Ken、Inoue Rintaro、Magami Kousuke、Matsubara Toshiya、Sugiyama Masaaki、Koide Tamaki
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics

      Volume: 1868 Issue: 9 Pages: 140446-140446

    • DOI

      10.1016/j.bbapap.2020.140446

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Simultaneous and Rapid Detection of Multiple Epimers and Isomers of Aspartyl Residues in Lens Proteins Using an LC-MS-MRM Method2020

    • Author(s)
      Fujii Noriko、Takata Takumi、Kim Ingu、Matsubara Toshiya
    • Journal Title

      ACS Omega

      Volume: 5 Issue: 42 Pages: 27626-27632

    • DOI

      10.1021/acsomega.0c04197

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of a Lens Protein in Low-Temperature Culture of Novel Immortalized Human Lens Epithelial Cells (iHLEC-NY2).2020

    • Author(s)
      Yamamoto N, Takeda S, Hatsusaka N, Hiramatsu N, Nagai N, Deguchi S, Nakazawa Y, Takata T, Kodera S, Hirata A, Kubo E, Sasaki H.
    • Journal Title

      Cells.

      Volume: 9 (12) Issue: 12 Pages: 2670-2670

    • DOI

      10.3390/cells9122670

    • NAID

      130008066407

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Rapid deamidation/isomerization of Asparagine residues and effect of C-terminal adjacent amino acid residues in human lens αA-crystallin2022

    • Author(s)
      Takumi Takata, Haruna Sugawa
    • Organizer
      The XXV Biennial Meeting International Society for Eye Research
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 加齢に応じて進行する蛋白質中アミノ酸残基異性化に関する分離分析手法の現状2022

    • Author(s)
      髙田匠
    • Organizer
      第 50 回構造活性相関シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 水晶体構成タンパク質中アミノ酸残基の傷と白内障2022

    • Author(s)
      髙田匠
    • Organizer
      第61回日本白内障学会・第48回水晶体研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] βB2-クリスタリン中151番目のトリプトファン残基の重要性2022

    • Author(s)
      加賀澤悠太, 髙田匠
    • Organizer
      第61回日本白内障学会・第48回水晶体研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Effect of C-terminal adjacent amino acid residues on deamidation/isomerization of asparagine residues in lens component proteins2022

    • Author(s)
      Takumi Takata
    • Organizer
      Fifth International Conference on D-Amino Acid Research
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Subunit dynamics in alpha-crystallin through deuteration-assisted small-angle neutron scattering2021

    • Author(s)
      Inoue, Rintaro, Sakamaki, Yusuke, Takata, Takumi, Morishima, Ken, Wood, Kathleen, Sato, Nobuhiro, Okuda, Aya, Shimizu, Masahiro, Urade, Reiko, Fujii, Noriko, Sugiyama, Masaaki
    • Organizer
      XXV General Assembly and Congress of the International Union of Crystallography - IUCr 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 迅速にAsp異性化反応が進行するモデル蛋白質の作出と評価2021

    • Author(s)
      高田 匠
    • Organizer
      第16回 D-アミノ酸学会学術講演会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] たんぱく質の中にある年輪 新しい老化の指標について2021

    • Author(s)
      高田 匠
    • Organizer
      アトムサイエンスフェア講演会2021
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Oligomer structure and formation kinetics of cataract-associated proteins revealed with native ion mobility-mass spectrometry2021

    • Author(s)
      Amber D Rolland, Takumi Takata, Micah T. Donor, Samuel G. Wheeler, Larry L. David, Kirsten J. Lampi, James S. Prell
    • Organizer
      69th American Society for Mass Spectrometry
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Asp残基異性化に応じたα-クリスタリン由来ペプチドの機能及び構造の変化2021

    • Author(s)
      高田 匠, 眞上晃輔
    • Organizer
      第60回日本白内障学会総会・第47回水晶体研究会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] βB1-クリスタリン中のアスパラギン酸残基の異性化2021

    • Author(s)
      加賀澤 悠太, 金 仁求, 高田 匠
    • Organizer
      第60回日本白内障学会総会・第47回水晶体研究会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 水晶体構成蛋白質中アスパラギン酸残基異性化に際するC末端側隣接アミノ酸残基の影響2021

    • Author(s)
      菅河 晴菜, 髙田 匠
    • Organizer
      第60回日本白内障学会総会・第47回水晶体研究会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] クリスタリン内部アミノ酸の翻訳後修飾からみる水晶体老化2020

    • Author(s)
      高田 匠
    • Organizer
      第59回日本白内障学会総会・第46回水晶体研究会シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] αA-クリスタリン中のAsp151をAsnに置換した組換え体では、同部位の異性化が10倍速く進行する2020

    • Author(s)
      高田 匠 , 藤井 紀子
    • Organizer
      第59回日本白内障学会総会・第46回水晶体研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] 蛋白質結合型のアスパラギン酸残基の異性化修飾について2020

    • Author(s)
      高田 匠 , 藤井 紀子
    • Organizer
      第71回日本電気泳動学会総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] The Effects of Isomerization and Racemization of Asp Residues for Polypeptide Properties2020

    • Author(s)
      Takumi Takata, Naomi Hachiya, Noriko Fujii
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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