Masai Eiji 政井英司

… Alternative Names

MASAI Eiji 政井英司

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Researcher Number	20272867
Other IDs	https://orcid.org/0000-0001-9194-7483
External Links
Affiliation (Current)	2025: 長岡技術科学大学, 工学研究科, 教授
Affiliation (based on the past Project Information) *help	2025: 長岡技術科学大学, 工学研究科, 教授 2016 – 2022: 長岡技術科学大学, 工学研究科, 教授 2015: 長岡技術科学大学, 工学(系)研究科(研究院), 教授 2010 – 2012: 長岡技術科学大学, 工学部, 教授 2007 – 2008: 長岡技術科学大学, 工学部, 准教授 … More 2004 – 2006: 長岡技術科学大学, 工学部, 助教授 2000 – 2002: 長岡技術科学大学, 工学部, 助教授 1996 – 1999: 長岡技術科学大学, 工学部, 講師 Less
Review Section/Research Field	Principal Investigator 応用微生物学・応用生物化学 / Applied microbiology / Medium-sized Section 64:Environmental conservation measure and related fields / Basic Section 38020:Applied microbiology-related Except Principal Investigator 応用微生物学・応用生物化学 / Biofunction/Bioprocess / Applied microbiology / Boundary agriculture / Biological Sciences / 広領域
Keywords	Principal Investigator リグニン / Sphingomonas / 生分解 / Sphingobium属細菌 / Sphingobium / 外膜輸送 / 芳香族化合物 / リグニン由来化合物 / シリンガ酸 / バニリン酸 … More / 内膜輸送 / 外膜トランスポーター / バクテリア / LysR-type transcriptional regulator / transcriptional regulation / protocatechuate 4,5-cleavage pathway / lignin-derived aromatic compounds / LysR型転写制御因子 / 転写制御 / プロトカテク酸4,5-開裂経路 / 生分解性ポリマー / 有用物質生産 / 基質取り込み / Comamonas属細菌 / テレフタル酸 / フタル酸類 / 芳香環開裂酵素遺伝子 / 3-0-メチルガリック酸 / プロトカテク酸4, 5-開裂経路 / 代謝経路 / 脱メチル酵素 / 芳香環ジオキシゲナーゼ / Sphingomonas paucimobilis / ガリック酸 / 3-O-メチルガリック酸 / リグニン分解 / 分解酵素遺伝子 / メタ開裂経路 / プロトカテク酸 / マッピング / リグニン分解系遺伝子 / 制限酵素地図 / ビフェニル / 染色体 / Sphingemenas / リグニン分解遺伝子群 / β-エ-テラーゼ / β-アリールエーテル / グルタチオンS-トランスフェラーゼ … More Except Principal Investigator Rhodococcus / ポリ塩化ビフェニル / PCB / biodegradation / transcriptional regulation / 二成分制御系 / 転写制御 / リグニン / 環境汚染 / ビフェニル / 電子伝達系 / ジオキシゲナーゼ / 2原子酸素添加酵素 / 蛋白結晶学 / X線結晶構造解析 / ferredoxin reductase / 樹脂 / セルロース / イオン液体 / バイオマスリファイナリー / two-component regulatory system / biphenyl / two component system / polychlorinated biphenyl / sensor / environmental pollution / Phodococcus / センサー / バイオプラスティックス / バイオプラスチックス / 機能性有機材料 / バイオリアクター / 遺伝子工学 / 微生物 / タンニン / 植物バイオマス / 不和合性 / 複製機構 / 線状プラスミド / 放射光 / biphenyl dioxygenase / 基質特異性 / extradiol型のdioxygenase / LysR family蛋白質 / PCB分解系 / 構造活性相関 / 生物マシーナリ / 立体構造 / 触媒反応 / 酵素 / 蛋白質 / システイン生合成 / 酸化ストレス反応 / 誘導物質 / 反応機構 / LysRファミリー / 転写調節因子 / フェレドキシン還元酵素 / 立体構造解析 / 芳香環分解 / BphA / 吸収スペクトル / 重原子同型置換法 / 電子伝達機構 / biphenyl dioyxgenase Less

微生物変換系の確立と新規ポリマー開発の両輪で実現するリグニンからの有価物生産Principal Investigator
- Principal Investigator
  
  政井英司
- Project Period (FY)
  2025 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 64:Environmental conservation measure and related fields
- Research Institution
  Nagaoka University of Technology
Outer and inner membrane transport systems for lignin-derived aromatic compounds in bacteriaPrincipal Investigator
- Principal Investigator
  
  Eiji Masai
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 38020:Applied microbiology-related
- Research Institution
  Nagaoka University of Technology
Ionic liquid-assisted complete biomass refinery by utilizing lignin
- Principal Investigator
  
  NINOMIYA Kazuaki
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Biofunction/Bioprocess
- Research Institution
  Kanazawa University
A novel outer membrane transport system for aromatic compounds mediated by various TonB-dependent receptorsPrincipal Investigator
- Principal Investigator
  
  Masai Eiji
- Project Period (FY)
  2015 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Applied microbiology
- Research Institution
  Nagaoka University of Technology
Characterization of a novel tripartite aromatic acids transporter, and its application for the production of industrially valuable metabolitesPrincipal Investigator
- Principal Investigator
  
  MASAI Eiji
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Applied microbiology
- Research Institution
  Nagaoka University of Technology
The production of high functional materials from biomass lignin by the fusion technology of molecular biology and organic material science
- Principal Investigator
  
  KATAYAMA Yoshihiro
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Boundary agriculture
- Research Institution
  Tokyo University of Agriculture and Technology
Characterization of molecular mechanism for transcriptional induction of PCB degradation system
- Principal Investigator
  
  FUKUDA Masao
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Applied microbiology
- Research Institution
  Nagaoka University of Technology
Transcriptional regulation of the protocatechuate 4,5-cleavage pathway genes in Sphingomonas paucimobilis SYK-6 by LigR, a LysR-type transcriptional regulatorPrincipal Investigator
- Principal Investigator
  
  MASAI Eiji
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Applied microbiology
- Research Institution
  Nagaoka University of Technology
リグニン主要分解中間体・シリンガ酸の代謝に関与する新規芳香環開裂系遺伝子群の解析Principal Investigator
- Principal Investigator
  
  政井英司
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology
Rhodococcus属細菌の線状プラスミドを利用したベクター系の開発
- Principal Investigator
  
  福田雅夫
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology
Studies on the transcriptional regulatory system for sensing of environmental pollutants
- Principal Investigator
  
  FUKUDA Masao
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology
集合系マシーナリーとしての微生物の芳香環分解代謝系の構造生物学
- Principal Investigator
  
  野中孝昌, 千田俊哉
- Project Period (FY)
  1999 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research on Priority Areas
- Review Section
  
  Biological Sciences
- Research Institution
  Nagaoka University of Technology
リグニン分解系・プロトカテク酸メタ開裂経路の遺伝子・酵素群の全容解明Principal Investigator
- Principal Investigator
  
  政井英司
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology
電子伝達系とカップルする2原子酸素添加酵素のX線結晶構造解析と構造活性相関
- Principal Investigator
  
  三井幸雄
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  広領域
- Research Institution
  Nagaoka University of Technology
リグニン分解系遺伝子群の染色体上における配置と構造Principal Investigator
- Principal Investigator
  
  政井英司
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology
リグニン代謝系多重遺伝子族エ-テラーゼの構造と発現制御Principal Investigator
- Principal Investigator
  
  政井英司
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Encouragement of Young Scientists (A)
- Research Field
  
  応用微生物学・応用生物化学
- Research Institution
  Nagaoka University of Technology

[Journal Article] Characterization of aromatic acid/proton symporters in Pseudomonas putida KT2440 toward efficient microbial conversion of lignin-related aromatics2021
- Author(s)
  Wada Ayumu, Prates Erica T., Hirano Ryo, Werner Allison Z., Kamimura Naofumi, Jacobson Daniel A., Beckham Gregg T, Masai Eiji
- Journal Title
  
  Metabolic Engineering
  
  Volume: 64 Pages: 167-179
- DOI
  10.1016/j.ymben.2021.01.013
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02867
[Journal Article] Functional roles of multiple Ton complex genes in a Sphingobium degrader of lignin-derived aromatic compounds2021
- Author(s)
  Masaya Fujita, Shodai Yano, Koki Shibata, Mizuki Kondo, Shojiro Hishiyama, Naofumi Kamimura, Eiji Masai
- Journal Title
  
  Scientific Reports
  
  Volume: 11 Issue: 1 Pages: 22444-22444
- DOI
  10.1038/s41598-021-01756-8
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H02867, KAKENHI-PROJECT-22KJ3121
[Journal Article] Iron acquisition system of Sphingobium sp. strain SYK-6, a degrader of lignin-derived aromatic compounds2020
- Author(s)
  Fujita Masaya, Sakumoto Taichi, Tanatani Kenta, Yu HongYang, Mori Kosuke, Kamimura Naofumi, Masai Eiji
- Journal Title
  
  Scientific Reports
  
  Volume: 10 Issue: 1 Pages: 12177-12177
- DOI
  10.1038/s41598-020-68984-2
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02867, KAKENHI-PROJECT-19J11312
[Journal Article] Iron acquisition system of Sphingobium sp. strain SYK-6, a degrader of lignin-derived aromatic compounds2020
- Author(s)
  Masaya Fujita、Taichi Sakumoto、Kenta Tanatani、Hong Yang Yu 、Kosuke Mori、Naofumi Kamimura、Eiji Masai
- Journal Title
  
  bioRxiv
  
  Volume: -
- DOI
  10.1101/2020.03.26.005173
- Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02867, KAKENHI-PROJECT-19J11312
[Journal Article] A TonB-dependent receptor constitutes the outer membrane transport system for a lignin-derived aromatic compound2019
- Author(s)
  Masaya Fujita、Kosuke Mori、Hirofumi Hara、Shojiro Hishiyama、Naofumi Kamimura、Eiji Masai
- Journal Title
  
  Communications Biology
  
  Volume: 2 Issue: 1
- DOI
  10.1038/s42003-019-0676-z
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02867, KAKENHI-PROJECT-19J11312
[Journal Article] Identification of the protocatechuate transporter gene in Sphingobium sp. strain SYK-6 and effects of overexpression on production of a value-added metabolite2018
- Author(s)
  Kosuke Mori, Naofumi Kamimura, Eiji Masai
- Journal Title
  
  Applied Microbiology and Biotechnology
  
  Volume: 印刷中 Issue: 11 Pages: 4807-4816
- DOI
  10.1007/s00253-018-8988-3
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H04473
[Journal Article] Application of microalgae hydrolysate as a fermentation medium for microbial production of 2-pyrone 4,6-dicarboxylic acid2018
- Author(s)
  Htet AN, Noguchi M, Ninomiya K, Tsuge Y, KajitaS, Masai E, Katayama Y, Shikinaka K, Otsuka Y, Nakamura M, Kuroda K, Honda T, Takahashi K
- Journal Title
  
  Journal of Bioengineering and Biotechnology
  
  Volume: 印刷中 Issue: 6 Pages: 717-722
- DOI
  10.1016/j.jbiosc.2017.12.026
- NAID
  40021570162
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14866, KAKENHI-PROJECT-15H04193
[Journal Article] DdvK, a Novel Major Facilitator Superfamily Transporter Essential for 5,5'-Dehydrodivanillate Uptake by Sphingobium sp. Strain SYK-62018
- Author(s)
  Kosuke Mori, Koh Niinuma, Masaya Fujita, Naofumi Kamimura, Eiji Masai
- Journal Title
  
  Applied and Environmental Microbiology
  
  Volume: 84 Issue: 20
- DOI
  10.1128/aem.01314-18
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H04473
[Journal Article] Polyesters of 2-pyrone-4,6-dicarboxylic acid (PDC) as bio-based plastics exhibiting strong adhering properties2009
- Author(s)
  M Hishida, K Shikinaka, Y Katayama, S Kajita, E Masai, M Nakamura, Y Otsuka, S Ohara, K Shigehara
- Journal Title
  
  Polymer J 41
  
  Pages: 297-302
- NAID
  10025091451
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Enzymatic properties of terephthalate 1,2-dioxygenase of Comamonas sp. strain E62008
- Author(s)
  Y Fukuhara, D Kasai, Y Katayama, M Fukuda, E Masai
- Journal Title
  
  Biosci Biotechnol Biochem 72
  
  Pages: 2335-2341
- NAID
  10027531926
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] A novel biomass-based polymer prepared from lignin-derived stable metabolic intermediate by copper(I)-catalyzed azide-alkyne click reaction2008
- Author(s)
  T Michinobu, Y Inazawa, K Hiraki, Y Katayama, E Masai, M Nakamura, S Ohara, K Shigehara
- Journal Title
  
  Chem Lett 37
  
  Pages: 154-155
- NAID
  10021077319
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Molecular properties of 2-pyrone-4,6- dicarboxylic acid (PDC) as a stable metabolic intermediate of lignin isolated by fractional precipitation with Na^+ ion2007
- Author(s)
  T Michinobu, M Bito, Y Yamada, Y Katayama, K Noguchi, E Masai, M Nakamura, S Ohara, K Shigehara
- Journal Title
  
  Bull Chem Soc Jpn 80
  
  Pages: 2436-2442
- NAID
  10020276087
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Characterization of ligV Essential for Catabolism of Vanillin by Shingomonas paucimobilis SYK-62007
- Author(s)
  E. Masai, Y. Yamamoto, T. Inoue, K. Takamura, H. Hara, D. Kasai, Y. Katayama, M. Fukuda
- Journal Title
  
  Biosci. Biotechnol. Biochem 71(10)
  
  Pages: 2487-2492
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Genetic and Biochemical Investigation on Bacterial Catabolic Pathways for Lignin-Derived Aromatic Compounds2007
- Author(s)
  E.Masai, Y.Katayama, M.Fukuda
- Journal Title
  
  Biosci Biotechnol Biochem 71・1
  
  Pages: 1-15
- NAID
  10027509557
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Characterization of two biphenyl dioxygenases for biphenyl/PCB degradation in A PCB degrader, Rhodococcus sp. strain RHA1.2007
- Author(s)
  Iwasaki T., Takeda H., Miyauchi K., Yamada T., Masai E., Fukuda M.
- Journal Title
  
  Biosci. Biotechnol. Biochem. 71・4
  
  Pages: 993-1002
- NAID
  10027513713
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] Degradation of 3-O-methylgallate in Sphingomonas paucimobilis SYK-6 by pathways involving protocatechuate4,5-dioxygenase2007
- Author(s)
  D. Kasai, E. Masai, Y. Katayama, M. Fukuda
- Journal Title
  
  FEMS Microbial Lett. 274
  
  Pages: 323-328
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Genetic and biochemical investigations on bacterial catabolic pathways for lignin-derived aromatic compounds2007
- Author(s)
  E Masai, Y Katayama, M Fukuda
- Journal Title
  
  Biosci Biotechnol Biochem 71
  
  Pages: 1-15
- NAID
  10027509557
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Molecular Properties of 2-Pyrone-4,6-Dicarboxylic Acid (PDC) as a Stable Matabolic Intemnediate of Lignin Isolated by Fractional Precipitation with Na+Ion2007
- Author(s)
  T. Michinobu, M. Bito, , Y. Yamada, Y. Katayama, K. Noguchi, E. Masai, M. Nakamura, , S. Ohara, K. Shigehara
- Journal Title
  
  Bull. Chem. Soc. Japan 80
  
  Pages: 2436-2442
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Characterization of two biphenyl dioxygenases for biphenyl/PCB degradation in A PCB degrader, Rhodococcus sp. strain RHA1.2007
- Author(s)
  Iwasaki T., Takeda H., Miyauchi K., Yamada T., Masai E., Fukuda M.
- Journal Title
  
  Biosci.Biotechnol.Biochem. 71-4
  
  Pages: 993-1002
- NAID
  10027513713
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] 微生物機能を用いたリグニン低分子化芳香族化合物からの新規ポリマー原料の生産と高機能性ポリマー開発への挑戦2006
- Author(s)
  大塚祐一郎, 中村雅哉, 大原誠資, 片山義博, 重原淳孝, 政井英司, 福田雅夫
- Journal Title
  
  J. Environmental Biotechnology 6・2
  
  Pages: 93-103
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Efficient production of 2-pyrone 4,6-dicarboxylic acid as a novel polymer-based materialfrom protocatechuate by microbial function2006
- Author(s)
  Y Ohtsuka, M Nakamura, K Shigehara. K Sugimura, E Masai, S Ohara, Y Katayama
- Journal Title
  
  Appl Microbiol Bioterch 71
  
  Pages: 608-614
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Multiple-subunit genes of the aromatic-ring-hydroxylating dioxygenase play an active role in biphenyl and polychlorinated biphenyl degradation in Rhodococcus sp. strain RHA1.2006
- Author(s)
  Iwasaki, T., Miyauchi, K., Masai, E., Fukuda, M.
- Journal Title
  
  Appl.Environ.Microbiol. 72-8
  
  Pages: 5396-5402
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] Efficient production of 2-pyrone 4,6-dicarboxylic acid as a novel polymer-based materialfrom protocatechuate by microbial function2006
- Author(s)
  Y.Ohtsuka, M.Nakamura, K.Shigehara, K.Sugimura, E.Masai, S.Ohara, Y.Katayama
- Journal Title
  
  Applied Microbiology and Bioterchnology 71・5
  
  Pages: 608-614
- Data Source
  KAKENHI-PROJECT-18208027
[Journal Article] Multiple-subunit genes of the aromatic-ring-hydroxylating dioxygenase play an active role in biphenyl and polychlorinated biphenyl degradation in Rhodococcus sp. strain RHAl.2006
- Author(s)
  Iwasaki, T., Miyauchi, K., Masai, E., Fukuda, M.
- Journal Title
  
  Appl. Environ. Microbiol. 72・8
  
  Pages: 5396-5402
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] Multiple-subunit genes of the aromatic-ring-hydroxylating dioxygenase play an active role in biphenyl and polychlorinated biphenyl degradation in Rhodococcus sp. strain RHA1.2006
- Author(s)
  Iwasaki T, Miyauchi K, Masai E, Fukuda M.
- Journal Title
  
  Appl.Environ.Microbiol. 72・8
  
  Pages: 5396-5402
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] Rhodococcus属細菌のPCB分解システム-重複遺伝子による多重酵素系-2005
- Author(s)
  福田雅夫, 宮内啓介, 政井英司
- Journal Title
  
  蛋白質核酸酵素 50・10
  
  Pages: 1541-1547
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Journal Article] PCB degradation system in a Rhodococcus bacterium-multiple isozyme system encoded by duplicated genes-.2005
- Author(s)
  Fukuda, M., Miyauchi, K., Masai, E.
- Journal Title
  
  Tanpakusitu Kakusan Kouso 50-1-
  
  Pages: 1541-1547
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16380058
[Patent] ポリエステル、ポリウレタン及びそれらの製造法2008
- Inventor(s)
  片山義博、重原淳孝、高島宏明、山本裕輔、間瀬浩平、下俊久、阿部友邦、政井英司、大原誠資、中村雅哉、大塚祐一郎
- Filing Date
  2008-09-12
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] エポキシ樹脂組成物及びその製造方法2008
- Inventor(s)
  片山義博、重原淳孝、山本裕輔、政井英司、大原誠資、中村雅哉、大塚祐一郎
- Industrial Property Number
  2008-226284
- Filing Date
  2008-09-03
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] 組換えプラスミド、形質転換体及び2H-ピラン-2-オン4, 6-ジカルボン酸の製造法2007
- Inventor(s)
  片山義博、梶田真也、重原淳孝、村瀬仁俊、間瀬浩平、大原誠資、中村雅哉、大塚祐一郎、福田雅夫、政井英司
- Industrial Property Number
  2007-255636
- Filing Date
  2007-09-28
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] PDC-乳酸コポリエステル及びその成形体2007
- Inventor(s)
  片山義博,重原淳孝,中村雅哉,大原誠資,政井英司, 他3名
- Industrial Property Rights Holder
  東京農工大学、長岡技術科学大学、森林総合研究所、豊田自動織機
- Filing Date
  2007-04-17
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] 2-ピロン-4、6-ジカルボン酸を発酵生産するための遺伝子、前記遺伝子を含むプラスミドを含む形質転換体及び、2-ピロン-4、6-ジカルボン酸の製造方法2007
- Inventor(s)
  片山義博, 重原淳孝, 中村雅哉, 大原誠資, 政井英司, 梶田真也, 間瀬浩平
- Industrial Property Rights Holder
  東京農工大学、長岡技術科学大学、森林総合研究所、豊田自動織機
- Industrial Property Number
  2007-255636
- Filing Date
  2007-09-28
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] プラスミド、形質転換体、及び4-カルボキシムコノラクトンの製造法2006
- Inventor(s)
  片山義博, 重原淳孝, 中村雅哉, 大原誠資, 政井英司, 間瀬浩平
- Industrial Property Rights Holder
  東京農工大学, 長岡技術科学大学, 森林総合研究所, 豊田自動織機
- Industrial Property Number
  2006-218524
- Filing Date
  2006-08-10
- Data Source
  KAKENHI-PROJECT-18208027
[Patent] PDC-乳酸コポリエステル及びその成形体2006
- Inventor(s)
  片山義博, 重原淳孝, 中村雅哉, 大原誠資, 政井英司, 間瀬浩平
- Industrial Property Rights Holder
  東京農工大学, 長岡技術科学大学, 森林総合研究所, 豊田自動織機
- Industrial Property Number
  2006-174069
- Filing Date
  2006-06-23
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Sphingomonad科細菌の細胞外膜における植物由来芳香族化合物取り込みメカニズムの解明2023
- Author(s)
  藤田雅也, 柴田昴輝, 菱山正二郎, 田辺幹雄, 千田俊哉, 上村直史, 政井英司
- Organizer
  第96回日本細菌学会総会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Sphingobium sp. SYK-6株の外膜におけるフェニルクマラン型化合物取り込みシステムの解明2022
- Author(s)
  藤田雅也, 柴田昴輝, 田辺幹雄, 千田俊哉, 上村直史, 政井英司
- Organizer
  第67回リグニン討論会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Sphingobium属細菌におけるリグニン由来芳香族化合物の内膜輸送システムの解明2021
- Author(s)
  平野　瞭、上村直史、政井英司
- Organizer
  第66回リグニン討論会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Sphingobium sp. SYK-6株に見いだされた立体選択的なリグニン由来芳香族化合物の外膜輸送システム2020
- Author(s)
  柴田昂輝, 藤田雅也, 上村直史, 菱山正二郎, 政井英司
- Organizer
  日本農芸化学会2020年度大会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Sphingobium属におけるリグニン由来芳香族化合物の外膜輸送システム2019
- Author(s)
  柴田昂輝, 藤田雅也, 上村直史, 菱山正二郎, 政井英司
- Organizer
  環境バイオテクノロジー学会2019年度大会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] The inner mambrane transporter system for lignin-derived aromatic compounds in Pseudomonas putida2019
- Author(s)
  Ayumu Wada, Kosuke Mori, Naofumi Kamimura, Eiji Masai
- Organizer
  1st International Lignin Symposium
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Iron acquisition pathways essential for the catabolism of lignin-derived aromatics in Sphingobium sp. SYK-62019
- Author(s)
  Masaya Fujita, Taichi Sakumoto, Kenta Tanatani, Naofumi Kamimura, Eiji Masai
- Organizer
  1st International Lignin Symposium
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Pseudomonas putida のリグニン由来芳香族化合物トランスポーターの解明2019
- Author(s)
  和田歩, 上村直史, 政井英司
- Organizer
  環境バイオテクノロジー学会2019年度大会
- Data Source
  KAKENHI-PROJECT-19H02867
[Presentation] Sphingobium sp. SYK-6株におけるリグニン由来ビフェニル化合物代謝系遺伝子群の転写制御機構2018
- Author(s)
  新沼皐, 荒木拓馬, 上村直史, 政井英司
- Organizer
  生命科学系フロンティアミーティング2018
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Sphingobium属細菌における金属元素取り込みメカニズムの解明2018
- Author(s)
  佐久本太一, 藤田雅也, 森光佑, 上村直史, 政井英司
- Organizer
  第59回新潟生化学懇話会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Sphingobium sp. SYK-6株におけるリグニン・ビフェニル化合物代謝系遺伝子群の転写制御システム2018
- Author(s)
  新沼皐, 荒木拓馬, 上村直史, 政井英司
- Organizer
  第63回リグニン討論会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリアにおけるリグニン由来芳香族化合物取り込みシステム2018
- Author(s)
  森光佑, 藤田雅也, 新沼皐, 上村直史, 政井英司
- Organizer
  第63回リグニン討論会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] The Initial Stage of the Bacterial Catabolism of Lignin-Derived Aromatics: How Do Bacterial Cells Take up These Aromatics?2018
- Author(s)
  Eiji Masai
- Organizer
  Gordon Research Conference: Lignin 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリア細胞外膜におけるリグニン由来化合物取り込みメカニズムの解明2018
- Author(s)
  藤田雅也, 森光佑, 上村直史, 政井英司
- Organizer
  第63回リグニン討論会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Bacterial outer membrane transport of lignin-derived aromatics2018
- Author(s)
  Masaya Fujita, Kosuke Mori, Naofumi Kamimura, Eiji Masai
- Organizer
  Gordon Research Conference: Lignin 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Sphingobium sp. SYK-6株における鉄取り込みに関与する遺伝子の同定2018
- Author(s)
  佐久本太一, 藤田雅也,　森光祐,　宇宏洋, 上村直史,　政井英司
- Organizer
  日本農芸化学会2018年度大会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] リグニン分解菌における鉄取り込みメカニズムの解明2018
- Author(s)
  佐久本太一, 藤田雅也, 森光佑, 上村直史, 政井英司
- Organizer
  第13回トランスポーター研究会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Sphingobium sp. SYK-6株におけるリグニン・ビフェニル成分代謝系遺伝子群の転写制御2018
- Author(s)
  新沼皐, 荒木拓馬, 上村直史, 政井英司
- Organizer
  第59回新潟生化学懇話会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリア外膜おけるリグニン由来芳香族化合物取り込みメカニズムの解明2017
- Author(s)
  藤田雅也, 森光祐, 上村直史, 政井英司
- Organizer
  第10回北陸合同バイオシンポジウム
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリア細胞外膜における芳香族化合物取り込みメカニズムの解明2017
- Author(s)
  藤田雅也,　森光祐,　上村直史,　政井英司
- Organizer
  第58回新潟生化学懇話会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] 2-ピロン-4,6-ジカルボン酸の発酵生産収率向上のための大腸菌の代謝工学的改変2017
- Author(s)
  濵野雄大, 柘植陽太, 梶田真也, 政井英司, 片山義博, 敷中一洋, 大塚祐一郎, 中村雅哉, 高橋憲司, 仁宮一章:
- Organizer
  日本生物工学会　第69回大会, 早稲田大学西早稲田キャンパス、東京, 2017年9月11-14日（ポスター）
- Data Source
  KAKENHI-PROJECT-15H04193
[Presentation] Sphingobium属細菌におけるリグニン由来ビフエニル型化合物の取り込み・代謝を調節する転写制御システム2017
- Author(s)
  新沼皐, 荒木拓馬, 上村直史, 政井英司
- Organizer
  第10回北陸合同バイオシンポジウム
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリア細胞外膜における植物由来芳香族化合物取り込みメカニズムの解明2017
- Author(s)
  藤田雅也, 森光祐, 上村直史, 政井英司
- Organizer
  第12回トランスポーター研究会年会
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] 最少量の低毒性イオン液体で前処理したバイオマスからの糖化・発酵生産プロセスの開発2016
- Author(s)
  志津田有成, 仁宮一章, 柘植陽太, 梶田真也, 政井英司, 片山義博, 敷中一洋, 大塚祐一郎, 中村雅哉, 高橋憲司
- Organizer
  日本生物工学会　第68回大会
- Place of Presentation
  富山国際会議場、ANAクラウンプラザホテル富山
- Year and Date
  2016-09-28
- Data Source
  KAKENHI-PROJECT-15H04193
[Presentation] バクテリア細胞外膜における芳香族化合物輸送メカニズムの解明2016
- Author(s)
  藤田雅也, 森光祐, 上村直史, 笠井大輔, 福田雅夫, 政井英司
- Organizer
  第11回トランスポーター研究会年会
- Place of Presentation
  京都府宇治市　京都大学宇治キャンパス
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] 2-ピロン-4,6-ジカルボン酸の発酵生産収率向上のための大腸菌の代謝工学的改変2016
- Author(s)
  濵野雄大, 仁宮一章, 柘植陽太, 梶田真也, 政井英司, 片山義博, 敷中一洋, 大塚祐一郎, 中村雅哉, 高橋憲司
- Organizer
  日本生物工学会　第68回大会
- Place of Presentation
  富山国際会議場、ANAクラウンプラザホテル富山
- Year and Date
  2016-09-28
- Data Source
  KAKENHI-PROJECT-15H04193
[Presentation] バクテリアにおける芳香族化合物の細胞外膜輸送メカニズム2016
- Author(s)
  藤田雅也, 森光祐, 上村直史, 笠井大輔, 福田雅夫, 政井英司
- Organizer
  第57回新潟生化学懇話会
- Place of Presentation
  新潟県新潟市　新潟大学新潟医療人育成センター
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Utilization of algae-hydrolysate as fermentation medium for 2-pyrone 4,6-dicarboxylic acid production2016
- Author(s)
  April N Htet, Mana Noguchi, Kazuaki Ninomiya, Yota Tsuge, Shinya Kajita, Eiji Masai, Yoshihiro Katayama, Kazuhiro Shikinaka, Yuichiro Otsuka, Masaya Nakamura, Ryo Honda, Kenji Takahashi
- Organizer
  日本化学会平成28年度北陸地区講演会・研究発表会
- Place of Presentation
  福井工業大学福井キャンパス、福井
- Year and Date
  2016-11-25
- Data Source
  KAKENHI-PROJECT-15H04193
[Presentation] Sphingobium属細菌におけるリグニン由来化合物の外膜輸送システム2016
- Author(s)
  藤田雅也, 森光佑, 上村直史, 笠井大輔, 福田雅夫, 政井英司
- Organizer
  日本農芸化学会2016年度大会
- Place of Presentation
  札幌コンベンションセンター
- Year and Date
  2016-03-28
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] バクテリアにおけるリグニン由来化合物の外膜輸送システム2015
- Author(s)
  藤田雅也, 森光佑, 上村直史, 笠井大輔, 福田雅夫, 政井英司
- Organizer
  第60回リグニン討論会
- Place of Presentation
  筑波大学
- Year and Date
  2015-11-05
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] Outer-Membrane Transport of Lignin-Derived Aromatics in Sphingobium sp. SYK-62015
- Author(s)
  Masaya Fujita, Kosuke Mori, Naofumi Kamimura, Daisuke Kasai, Masao Fukuda, Eiji Masai
- Organizer
  The 4th International GIGAKU Conference
- Place of Presentation
  長岡技術科学大学
- Year and Date
  2015-06-20
- Data Source
  KAKENHI-PROJECT-15H04473
[Presentation] 他、Comamonas sp. E6株における新規芳香族カルボン酸トランスポーターの解析2012
- Author(s)
  政井英司
- Organizer
  日本農芸化学会大会
- Place of Presentation
  京都
- Year and Date
  2012-03-23
- Data Source
  KAKENHI-PROJECT-22580077
[Presentation] 他、Comamonas sp. E6株のテレフタル酸取り込みシステム2011
- Author(s)
  政井英司
- Organizer
  日本農芸化学会大会
- Place of Presentation
  京都
- Year and Date
  2011-03-27
- Data Source
  KAKENHI-PROJECT-22580077
[Presentation] Bioconversion of lignin-related compounds to a novel polymer material, 2-oxopyran-2H-2,6-dicarboxylic acid2008
- Author(s)
  K Mase, Y Otsuka, E Masai, M Nakamura, S Kajita, M Fukuda, S Ohara, K Shigehara,Y Katayama
- Organizer
  11th Cell Wall Meeting
- Place of Presentation
  Copenhagen
- Year and Date
  2008-08-13
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Comamonas spE6株のイソフタル酸分解酵素遺伝子群の単離と解析2008
- Author(s)
  福原優樹、笠井大輔、片山義博、政井英司、福田雅夫
- Organizer
  日本農芸化学会2008年度大会
- Place of Presentation
  名城大学
- Year and Date
  2008-03-26
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Production of novel polymer-based material from lignin derivatives by microbial function2007
- Author(s)
  Y Otsuka, M Nakamura, E Masai, S Ohara, S Kajita, K Shigehara, Y Katayama
- Organizer
  International Congress on Biotechnology in the Pulp and Paper Industry
- Place of Presentation
  Madison, Wisconsin, USA
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Role of the protocatechuate 4,5-dioxygenase gene in 3-O-methylgallate deg radation by Sphingomonas paucimobilis SYK-62007
- Author(s)
  D. Kasai, E. Masai, Y. Katayama, M. Fukuda
- Organizer
  American Society for Microbiology, General 107th Meeting
- Place of Presentation
  Toronto, Canada
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Selective Na^+ ion complexation by biomass-based linear polymers prepared from lignin-derived stable intermediate2007
- Author(s)
  T Michinobu, Y Inazawa, M Bitoh, Y Ohtsuka, M Nakamura, E Masai, S Kajita, Y Katayama, S Ohara, K Shigehara
- Organizer
  12th IUPAC International Symposium on MacroMolecular Complexes
- Place of Presentation
  Fukuoka
- Year and Date
  2007-08-29
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Enzymatic Properties of Terephthalate 1,2-Dioxygenase from Comamonas sp. Strain E6.2007
- Author(s)
  Y. Fukuhara, E. Masai, Y. Katayama, M. Fukuda
- Organizer
  American Society for Microbiology, General 107th Meeting
- Place of Presentation
  Toronto, Canada
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] リグニン下流代謝系プロトカテク酸4、5-解裂経路遺伝子の転写制御2007
- Author(s)
  上村直史, 高村一寛, 原啓文, 片山義博, 政井英司, 福田雅夫
- Organizer
  第52回リグニン討論会
- Place of Presentation
  宇都宮大学
- Year and Date
  2007-11-14
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Shingomonas paucimobilis SYK-6株のプロトカテク酸4,5-ジオキシゲナーゼが関与する3-O-メチルガリック酸開裂経路2007
- Author(s)
  笠井大輔、政井英司、片山義博, 福田雅夫
- Organizer
  第52回リグニン討論会
- Place of Presentation
  宇都宮大学
- Year and Date
  2007-11-14
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Stereoselectivity and role of four distinct guaiacylglycerol-beta-guaiacylether dehydogenases from Sphingomonas paucimobilis SYK-62007
- Author(s)
  E. Masai, H. Horiuchi, Y. Sato, S. Hishiyama, M. Nakamura, Y. Katayama, M. Fukuda
- Organizer
  American Society for Microbiology, General 107th Meeting
- Place of Presentation
  Toronto, Canada
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Enzymatic Properties of terephthalate 1,2-dioxygenase from Comamonas sp. strain E62007
- Author(s)
  Y Fukuhara, E Masai, Y Katayama, M Fukuda
- Organizer
  American Society for Microbiology, General 107th Meeting
- Place of Presentation
  Toronto, Canada
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Stereoselective degradation of guaiacylglycerol-β-guaiacyl ether by Sphingomonas paucimobilis SYK-62007
- Author(s)
  M. Nakamura, Y. Otsuka, , E. Masai S. Ohara S. Kajita, K. Shigehara, Y. Katayama
- Organizer
  International Congress on Biotechnology in the Pulp and Paper Industry
- Place of Presentation
  Madison, Wisconsin, USA
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Bioconversion of lignin-related compounds to a novel polymer material, 2-oxopyran-2H-2,6-dicarboxylic acid2007
- Author(s)
  K. Mase, Y. Otsuka, E. Masai, M. Nakamura, S. Kajita, M. Fukuda, S. Ohara, K. Shigehara, Y. Katayama
- Organizer
  11th Cell Wall Meeting
- Place of Presentation
  Copenhagen, Demmark
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] Shingomonas paucimobilis SYK-6株のβ-アリールエーテル代謝に関与する4種の脱水素酵素の機能と立体選択性2007
- Author(s)
  政井英司、森内英輝、佐藤祐介、菱山正二郎、中村雅哉、片山義博、福田雅夫
- Organizer
  第52回リグニン討論会
- Place of Presentation
  宇都宮大学
- Year and Date
  2007-11-14
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] シキミ酸経路を経由したグルコースからの2-pyrone-4,6-dicarboxylic acidの発酵生産2007
- Author(s)
  中島正博、西野由香里、田村真統, 間瀬浩平、政井英司、大塚裕一郎, 中村雅哉、大原誠資、片山義博, 梶田真也
- Organizer
  第52回リグニン討論会
- Place of Presentation
  宇都宮大学
- Year and Date
  2007-11-14
- Data Source
  KAKENHI-PROJECT-18208027
[Presentation] 生命科学と有機材料科学を基盤としたリグニンの新しい高度利用に関する研究(I)2006
- Author(s)
  大塚祐一郎、中村雅哉、杉村耕介、政井英司、重原淳孝、片山義博、大原誠資
- Organizer
  第51回リグニン討論会
- Place of Presentation
  札幌
- Year and Date
  2006-10-27
- Data Source
  KAKENHI-PROJECT-18208027

1. FUKUDA Masao (20134512)

# of Collaborated Projects: 4 results

# of Collaborated Products: 7 results
2. SENDA Toshiya (30272868)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
3. 野中孝昌 (30242457)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 城所俊一 (80195320)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. KATAYAMA Yoshihiro (10214339)

# of Collaborated Projects: 1 results

# of Collaborated Products: 27 results
6. SHIGEHARA Kiyotaka (60170867)

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results
7. NAKAMURA Masaya (50353793)

# of Collaborated Projects: 1 results

# of Collaborated Products: 16 results
8. OHARA Seiji (20353617)

# of Collaborated Projects: 1 results

# of Collaborated Products: 14 results
9. KAJITA Shinya (40323753)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
10. NINOMIYA Kazuaki (10379125)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
11. 三井幸雄 (40012637)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 宮内啓介 (20324014)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
13. 高橋憲司 (00216714)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
14. 生越友樹 (00447682)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 黒田浩介 (10748891)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 山岸忠明 (90220251)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. 覚知亮平 (00743816)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 野口愛 (30724207)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
19. 遠藤太佳嗣 (50743837)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. 笠井大輔 (80452085)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
21. 菱山正二郎 (00353821)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
22. 桑原敬司 (50525574)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. 柘植陽太

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Masai Eiji 政井 英司

MASAI Eiji 政井 英司

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微生物変換系の確立と新規ポリマー開発の両輪で実現するリグニンからの有価物生産Principal Investigator

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Outer and inner membrane transport systems for lignin-derived aromatic compounds in bacteriaPrincipal Investigator

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Ionic liquid-assisted complete biomass refinery by utilizing lignin

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A novel outer membrane transport system for aromatic compounds mediated by various TonB-dependent receptorsPrincipal Investigator

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Characterization of a novel tripartite aromatic acids transporter, and its application for the production of industrially valuable metabolitesPrincipal Investigator

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The production of high functional materials from biomass lignin by the fusion technology of molecular biology and organic material science

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Characterization of molecular mechanism for transcriptional induction of PCB degradation system

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Transcriptional regulation of the protocatechuate 4,5-cleavage pathway genes in Sphingomonas paucimobilis SYK-6 by LigR, a LysR-type transcriptional regulatorPrincipal Investigator

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リグニン主要分解中間体・シリンガ酸の代謝に関与する新規芳香環開裂系遺伝子群の解析Principal Investigator

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Rhodococcus属細菌の線状プラスミドを利用したベクター系の開発

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Studies on the transcriptional regulatory system for sensing of environmental pollutants

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集合系マシーナリーとしての微生物の芳香環分解代謝系の構造生物学

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リグニン分解系・プロトカテク酸メタ開裂経路の遺伝子・酵素群の全容解明Principal Investigator

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Masai Eiji 政井英司

MASAI Eiji 政井英司