研究紹介
研究テーマ
遺伝子制御の物理
キーワード
遺伝子制御、転写、相分離、DNA(クロマチン)、界面、細胞分化・初期化
研究概要
多細胞生物は様々な種類の細胞から構成されていますが、それぞれの細胞は同じDNAを持っています。それぞれの細胞の「個性」は、どの遺伝子が活性で、どの遺伝子が不活性であるかということによります。我々は、遺伝子表現のダイナミクスがDNA(クロマチン)、RNA、タンパク質の構造やダイナミクスにどのように制御されているかということを理論的手法で研究しています。また、複製、分裂、スプライシングの物理にも研究を展開していきたいと考えています。ICReDDでは、本研究を推進しつつ、合成系に応用していきたいと考えています。
代表的な研究成果
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Elasticity control of entangled chromosomes: Crosstalk between condensin complexes and nucleosomes
, K. Kinoshita, T. Hirano, Biophysical Journal, 2023, 122, 19, 3869-3881
DOI: 10.1016/j.bpj.2023.08.006 -
Polymeric Nature of Tandemly Repeated Genes Enhances Assembly of Constitutive Heterochromatin in Fission Yeast
, T. Asanuma, Y. Murakami, Communications Biology, 2023, 6, Article number: 796
DOI: 10.1038/s42003-023-05154-w -
Slow chromatin dynamics enhances promoter accessibility to transcriptional condensatesTetsuya Yamamoto, Takahiro Sakaue, Helmut Schiessel, Nucleic Acids Research, 2021, 49, 5017-5027DOI: 10.1093/nar/gkab275
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Paraspeckles are constructed as block copolymer micellesTomohiro Yamazaki, Tetsuya Yamamoto, Hyura Yoshino, Sylvie Souquere, Shinichi Nakagawa, Gerard Pierron, Tetsuro Hirose, EMBO J, 2021, e107270
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Phase separation driven by production of architectural RNA transcriptsTetsuya Yamamoto, Tomohiro Yamazaki, Tetsuro Hirose, Soft Matter, 2020, 16, 4692-4698DOI: 10.1039/C9SM02458A
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Tetsuya Yamamoto, Helmut Schiessel, PHYSICAL REVIEW E, 2017, 96, 030402(R)
DOI: 10.1103/PhysRevE.96.030402 - Transcription rates in DNA brushes
Tetsuya Yamamoto, S. A. Safran, Soft Matter, 2015, 11, 3017-3021
DOI: 10.1039/C4SM02871F
業績一覧
2024年
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Dissolution-Limited Reactions in Solid-State Synthesis
, K. Kubota, H. Ito, NIHON REOROJI GAKKAISHI, 2024, 52, 161-170
DOI: 10.1678/rheology.52.161
2023年
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Nascent Ribosomal RNA Act as Surfactant that Suppresses Growth of Fibrillar Centers in Nucleolus
, Yamazaki, T., Ninomiya, K., Hirose, T., Communications Biology, 2023, 6, 1129
DOI: 10.1038/s42003-023-05519-1
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Elasticity control of entangled chromosomes: Crosstalk between condensin complexes and nucleosomes
, K. Kinoshita, T. Hirano, Biophysical Journal, 2023, 122, 19, 3869-3881
DOI: 10.1016/j.bpj.2023.08.006
-
Polymeric Nature of Tandemly Repeated Genes Enhances Assembly of Constitutive Heterochromatin in Fission Yeast
, T. Asanuma, Y. Murakami, Communications Biology, 2023, 6, Article number: 796
DOI: 10.1038/s42003-023-05154-w
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Polymer Brush Inspired by Ribosomal RNA Transcription
, W. Li, European Physical Journal E, 2023, 46, 61
DOI: 10.1140/epje/s10189-023-00323-5
2022年
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Triblock Copolymer Micelle Model of Spherical Paraspeckles
, T. Yamazaki, T. Hirose, Frontiers in Molecular Biosciences, 2022, 9,
DOI: 10.3389/fmolb.2022.925058
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Micellization: A New Principle in the Formation of Biomolecular Condensates
, T. Yamamoto, T. Hirose, Frontiers in Molecular Biosciences, 2022, 9,
DOI: 10.3389/fmolb.2022.974772
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Loop Extrusion Driven Volume Phase Transition of Entangled Chromosomes
, H. Schiessel, Biophysical Journal, 2022, 121, 2742-2750
DOI: 10.1016/j.bpj.2022.06.014
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Scaling Theory of Swelling and Deswelling of Polymer Networks
, J. A. Campbell, S. Panyukov, M. Rubinstein, Macromolecules, 2022, 55, 3588-3601
DOI: 10.1021/acs.macromol.1c02553
2021年
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Slow Chromatin Dynamics Enhances Promoter Accessibility to Transcriptional Condensates
, T. Sakaue, H. Schiessel, Nucleic Acids Research, 2021, 49, 5017-5027
DOI: 10.1093/nar/gkab275
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Paraspeckles Are Constructed as Block Copolymer Micelles
, T. Yamamoto, H. Yoshino, S. Souquere, S. Nakagawa, G. Pierron, T. Hirose, Embo Journal, 2021, , 19
DOI: 10.15252/embj.2020107270
2020年
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Fracture Strain of Composite with Nonuniformly Distributed Reinforcing Fibers
, Y. Masubuchi, M. Doi, Journal of Rheology, 2020, 64, 933-939
DOI: 10.1122/8.0000046
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Phase Separation Driven by Production of Architectural RNA Transcripts
, T. Yamazaki, T. Hirose, Soft Matter, 2020, 16, 4692-4698
DOI: 10.1039/c9sm02458a