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2021 Fiscal Year Final Research Report

Small molecules that induce atypical ubiquitinations

Research Project

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Project/Area Number 19K16326
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 47010:Pharmaceutical chemistry and drug development sciences-related
Research InstitutionTohoku University

Principal Investigator

Tomoshige Shusuke  東北大学, 生命科学研究科, 助教 (50822524)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywords疎水性タグ / mHtt
Outline of Final Research Achievements

Ubiquitination, a posttranslational modification, has been shown to have variety in its linkage type. Here I aimed to generate compounds able to induce atypical ubiquitinations. Compounds that can display hydrophobic structure on protein surface were synthesized and are found to mediate targeted degradation of mHtt via ubiquitin-proteasome system. The results were reported in an international conference and were published in an international academic journal.

Free Research Field

創薬化学

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた化合物は通常のユビキチン化経路とは異なる経路でユビキチン化を誘導しタンパク質を分解するため、特殊なユビキチン化を誘導している可能性が考えられる。本化合物についてさらなる解析が必要だが、特殊なユビキチン化に関する研究を支援するケミカルツールになりうる。
また、化合物によって減少したmHttは神経変性疾患の原因となるタンパク質であり。この化合物は脳移行性も示したことから、神経変性疾患の新規治療戦略の提案につながった。

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Published: 2023-01-30  

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