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Molecular mechanism of action of ubiquitin-like protein MNSFb in regulating cell differentiation

Research Project

Project/Area Number 26440054
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional biochemistry
Research InstitutionShimane University

Principal Investigator

Nakamura Morihiko  島根大学, 産学連携センター, 教授 (20155865)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsユビキチン様タンパク質 / 分子シャペロン / RANKL / 破骨細胞 / 細胞分化
Outline of Final Research Achievements

MNSF, a ubiquitin-like protein, covalently binds to various target proteins including proapoptotic Bcl-G. During the course of isolation of MNSF-conjugating
enzyme(s), we identified a novel target protein for MNSF. MALDI-TOF MS fingerprinting revealed that the MNSF interacting protein is HSPA8 (heat shock 70-kDa protein 8). We observed that MNSF noncovalently binds to HSPA8 in the presence of ATP in vitro. Double knockdown of MNSF and HSPA8 strongly inhibited RANKL induced osteoclastogenesis from Raw264.7 macrophage-like cells. The same treatment inhibited RANKL-inducedERK1/2 and p38 phosphorylation and TNF production,suggesting that the association of MNSF with HSPA8 may promote RANKL-induced osteoclastogenesis. This is the first report that MNSF binds to a protein substrate via the noncovalent association and exerts biological effects.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (5 results)

All 2016 2015 2014

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results,  Acknowledgement Compliant: 3 results) Presentation (2 results)

  • [Journal Article] Ubiquitin-like protein MNSFβ noncovalently binds to molecular chaperone HSPA8 and regulates osteoclastogenesis.2016

    • Author(s)
      Notsu K, Nakagawa M, Nakamura M
    • Journal Title

      Mol Cell Biochem

      Volume: 421 Issue: 1-2 Pages: 149-157

    • DOI

      10.1007/s11010-016-2795-x

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Ubiquitin-like protein MNSFβ negatively regulates T cell function and survival.2015

    • Author(s)
      Nakamura M, Nakagawa M, Watanabe J.
    • Journal Title

      Immunological Investigation

      Volume: 44 Issue: 1 Pages: 1-12

    • DOI

      10.3109/08820139.2014.909454

    • Related Report
      2015 Research-status Report 2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Ubiquitin-like protein MNSFβ covalently binds to cytosolic 10-formyltetrahydrofolate dehydrogenase and regulates thymocyte function.2015

    • Author(s)
      Nakamura M, Watanabe N, Notsu K
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 464 Issue: 4 Pages: 1096-1100

    • DOI

      10.1016/j.bbrc.2015.07.083

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Ubiquitin-like protein MNSFβ non-covalently binds to molecular chaperone HSC71 and regulates osteoclastogenesis.2016

    • Author(s)
      Nakamura M, Notsu K
    • Organizer
      第89回 日本生化学会
    • Place of Presentation
      (仙台)仙台国際センター
    • Year and Date
      2016-09-25
    • Related Report
      2016 Annual Research Report
  • [Presentation] Ubiquitin-like protein MNSFβ negatively regulates T cell function and survival.2014

    • Author(s)
      中村守彦、仲川舞
    • Organizer
      日本生化学会
    • Place of Presentation
      京都国際会館
    • Year and Date
      2014-10-15 – 2014-10-18
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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