Study of the mechanism of nucleosome-enhanceosome conversion
Project/Area Number |
18K19305
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
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Research Institution | Yokohama City University |
Principal Investigator |
OGATA Kazuhiro 横浜市立大学, 医学研究科, 教授 (90260330)
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Co-Investigator(Kenkyū-buntansha) |
仙石 徹 横浜市立大学, 医学部, 講師 (60576312)
浜田 恵輔 横浜市立大学, 医学部, 助教 (00344052)
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Project Period (FY) |
2018-06-29 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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Keywords | 転写制御 / ヌクレオソーム / ヒストン修飾酵素 / クライオ電子顕微鏡 / 転写因子 / エンハンソソーム / 定量解析 / 転写制御機構 |
Outline of Final Research Achievements |
Histone-modifying enzymes play an important role in the nucleosome-enhanceosome structural remodeling associated with transcriptional activation. In this study, we determined the three-dimensional structure of NSD2, a histone methyltransferase that dimethylated lysine 36 of histone H3 (H3K36), in complex with a nucleosome substrate by single-particle analysis using cryo-electron microscopy. In the absence of a nucleosome, NSD2 is inactive due to the binding of the autoinhibitory loop. However, in our structure, NSD2 bound to nucleosome coordinates the conformational change of the autoinhibitory loop and the dissociation of DNA from the nucleosome, resulting in the methylation of H3K36. In addition, the oncogenic variants of NSD2 destabilize the autoinhibitory loop, making the enzyme unable to maintain its inhibitory state.
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Academic Significance and Societal Importance of the Research Achievements |
分子構造レベルでのがん化の機構研究は、特に細胞質におけるシグナル伝達分子としてのリン酸化酵素やそのアロステリック制御因子であるGタンパク質の変異について解析が進んでおり、分子標的薬の開発のための基盤となっている。しかしながら転写因子やヒストン修飾酵素などの核内の分子の変異によるがん化については研究が遅れているのが現状である。本研究では、遺伝子発現に関与する分子複合体の構造解析により、がん化の引き金となる核内でのイベントを分子構造レベルで解明したことになり、核内因子を標的としたがん分子標的療法への道を開くことで、がん治療の適応範囲が大きく広がることが期待される。
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Report
(4 results)
Research Products
(36 results)
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[Journal Article] OTUD5 Variants Associated With X-Linked Intellectual Disability and Congenital Malformation2021
Author(s)
Saida K, Fukuda T, Scott DA, Sengoku T, Ogata K, Nicosia A, Hernandez-Garcia A, Lalani SR, Azamian MS, Streff H, Liu P, Dai H, Mizuguchi T, Miyatake S, Asahina M, Ogata T, Miyake N, Matsumoto N.
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Journal Title
Front Cell Dev Biol.
Volume: 9
Pages: 631428-631428
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] De novo hotspot variants in CYFIP2 cause early-onset epileptic encephalopathy2018
Author(s)
Nakashima Mitsuko、Kato Mitsuhiro、Aoto Kazushi、Shiina Masaaki、Belal Hazrat、Mukaida Souichi、Kumada Satoko、Sato Atsushi、Zerem Ayelet、Lerman-Sagie Tally、Lev Dorit、Leong Huey Yin、Tsurusaki Yoshinori、Mizuguchi Takeshi、Miyatake Satoko、Miyake Noriko、Ogata Kazuhiro、Saitsu Hirotomo、Matsumoto Naomichi
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Journal Title
Annals of Neurology
Volume: 83
Issue: 4
Pages: 794-806
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] A homozygous NOP14 variant is likely to cause recurrent pregnancy loss2018
Author(s)
Suzuki Toshifumi、Behnam Mahdiyeh、Ronasian Firooze、Salehi Mansoor、Shiina Masaaki、Koshimizu Eriko、Fujita Atsushi、Sekiguchi Futoshi、Miyatake Satoko、Mizuguchi Takeshi、Nakashima Mitsuko、Ogata Kazuhiro、Takeda Satoru、Matsumoto Naomichi、Miyake Noriko
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Journal Title
Journal of Human Genetics
Volume: 63
Issue: 4
Pages: 425-430
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Heterozygous Mutations in OAS1 Cause Infantile-Onset Pulmonary Alveolar Proteinosis with Hypogammaglobulinemia.2018
Author(s)
Cho K, Yamada M, Agematsu K, Kanegane H, Miyake N, Ueki M, Akimoto T, Kobayashi N, Ikemoto S, Tanino M, Fujita A, Hayasaka I, Miyamoto S, Tanaka-Kubota M, Nakata K, Shiina M, Ogata K, Minakami H, Matsumoto N, Ariga T.
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Journal Title
Am J Hum Genet
Volume: 102
Issue: 3
Pages: 480-486
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] De novo variants in CAMK2A and CAMK2B cause neurodevelopmental disorders2018
Author(s)
Akita Tenpei、Aoto Kazushi、Kato Mitsuhiro、Shiina Masaaki、Mutoh Hiroki、Nakashima Mitsuko、Kuki Ichiro、Okazaki Shin、Magara Shinichi、Shiihara Takashi、Yokochi Kenji、Aiba Kaori、Tohyama Jun、Ohba Chihiro、Miyatake Satoko、Miyake Noriko、Ogata Kazuhiro、Fukuda Atsuo、Matsumoto Naomichi、Saitsu Hirotomo
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Journal Title
Annals of Clinical and Translational Neurology
Volume: 5
Issue: 3
Pages: 280-296
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] GRIN2D variants in three cases of developmental and epileptic encephalopathy2018
Author(s)
Tsuchida Naomi、Hamada Keisuke、Shiina Masaaki、Kato Mitsuhiro、Kobayashi Yu、Tohyama Jun、Kimura Kazue、Hoshino Kyoko、Ganesan Vigneswari、Teik Keng W.、Nakashima Mitsuko、Mitsuhashi Satomi、Mizuguchi Takeshi、Takata Atsushi、Miyake Noriko、Saitsu Hirotomo、Ogata Kazuhiro、Miyatake Satoko、Matsumoto Naomichi
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Journal Title
Clinical Genetics
Volume: 94
Issue: 6
Pages: 538-547
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] A novel GFI1B mutation at the first zinc finger domain causes congenital macrothrombocytopenia2017
Author(s)
Uchiyama Y, Ogawa Y, Kunishima S, Shiina M, Nakashima M, Yanagisawa K, Yokohama A, Imagawa E, Miyatake S, Mizuguchi T, Takata A, Miyake N, Ogata K, Handa H, Matsumoto N
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Journal Title
British Journal of Haematology
Volume: 印刷中
Issue: 6
Pages: 843-847
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] A novel missense mutation affecting the same amino acid as the recurrent PACS1 mutation in Schuurs-Hoeijmakers syndrome2017
Author(s)
Miyake N, Ozasa S, Mabe H, Kimura S, Shiina M, Imagawa E, Miyatake S, Nakashima M, Mizuguchi T, Takata A, Ogata K, Matsumoto N
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Journal Title
Clinical Genetics
Volume: 93
Issue: 4
Pages: 929-930
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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