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RIKEN Center for Sustainable Resource Science Natural Product Biosynthesis Research Unit

Unit Leader: Shunji Takahashi (D.Sc.)

Research Summary

Shunji  Takahashi

Microorganism such as actinomycetes and filamentous fungi is a rich repository of valuable secondary metabolite. The understanding of biosynthetic mechanism is important to utilize microbial metabolites efficiently. Therefore we elucidate a key reaction of biosynthetic pathway by genetic and biochemical methods. We diversify microbial metabolites by modifying gene cluster and pathway engineering. In addition to the utilization of transcriptional regulators, we develop novel methods of activating biosynthetic gene cluster by small molecules, and create natural products. We construct microbial biosynthetic platform and efficiently produce valuable natural products using genetic resources from nature.

Main Research Fields

  • Complex Systems

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Biological Sciences

Keywords

  • Biosynthesis of natural product
  • Microorganism
  • Utilization of sleeping genes
  • Regulation of gene expression
  • Biosynthetic platform

Selected Publications

  • 1. Zheng Y., Sakai K., Takagi H., Watanabe K., Sato-Shiozaki Y., Misumi Y., Kurisu G., Nogawa T., Takita R., Takahashi S.:
    "Iron-sulphur protein catalysed [4+2] cycloadditions in natural product biosynthesis."
    Nat. Commun., 15(1): 5779 (2024).
  • 2. Zheng Y., Morita N., Takagi H., Shiozaki-Sato Y., Jun Ishikawa, Shin-ya K., and Takahashi S.:
    "Alanyl-tRNA synthetase-like enzymes catalyzed aminoacylation in the biosynthesis of nucleoside sulfamate ascamycin."
    ACS Catal. 14: 3533−3542 (2024).
  • 3. Sakai K., Futamura Y., Nogawa T., Zhao Y., Koshino H., Osada H., and Takahashi S.:
    "Production of kinanthraquinone D with anti-malarial activity by heterologous gene expression and biotransformation in Streptomyces lividans TK23."
    J. Nat. Prod., 87(4): 855–860 (2024).
  • 4. Abdelhakim I.A., Futamura Y., Asami Y., Hanaki H., Kito N., Masuda S., Shibata A., Shirasu K., Osada H., Ishikawa J., and Takahashi S.:
    "Expression of Syo_1.56 SARP Regulator Unveils Unprecedented Elasnin Derivatives with Potent Antibacterial Activity."
    J. Nat. Prod., 87(5): 1459–1470 (2024).
  • 5. Hashimoto T., Suenaga H., Amagai K., Hashimoto J., Kozone I., Takahashi S., Kazuo Shin-ya K.:
    "In vitro module editing of NRPS enables production of highly potent Gq-signaling inhibitor FR900359 derived from unculturable plant symbiont."
    Angew. Chem. Int. Ed., 63: e202317805 (2024).
  • 6. Vo N.N.Q., Nomura Y., Kinugasa K., Takagi H., and Takahashi S.:
    "Identification and characterization of a bifunctional drimenol synthase of bacterial origin from Aquimarina spongiae."
    ACS Chem. Biol., 17: 1226−1238 (2022).
  • 7. Fujiyama K., Kato N., Re S., Kinugasa K., Watanabe K., Takita R., Nogawa T., Hino T., Osada H., Sugita Y., Takahashi S., and Nagano S.:
    "Molecular basis for two stereoselective Diels-Alderases that produce decalin skeletons."
    Angew. Chem. Int. Ed. Engl. 60: 22401-22410 (2021).
  • 8. Panthee S., Kito N., Hayashi T., Shimizu T, Ishikawa J., Osada H., and Takahashi S.:
    "β-carboline chemical signals induce reveromycin production through a LuxR family regulator in Streptomyces sp. SN-593."
    Sci. Rep. 10(1): 10230 (2020).
  • 9. Kanoh N., Kawamata A., Suzuki K., Takahashi Y., Miyazawa T., Nakamura T., Moriya T., Hirano H., Osada H., Iwabuchi Y., and Takahashi S.:
    "An integrated screening system for the selection of exemplary substrates for natural and engineered cytochrome P450s."
    Sci. Rep. 9(1): 18023 (2019).
  • 10. Kato N., Nogawa T., Takita R., Kinugasa K., Kanai M., Uchiyama M., Osada H., and Takahashi S.:
    "Control of the stereochemical course of [4+2] cycloaddition during trans-decalin formation by Fsa2-family enzymes."
    Angew. Chem. Int. Ed., 57: 9754-9758 (2018).

Related Links

Lab Members

Principal investigator

Shunji Takahashi
Unit Leader

Core members

Katsuyuki Sakai
Research Scientist
Yu Zheng
Special Postdoctoral Researcher
Islam Adel Abdelhakim Amin
Special Postdoctoral Researcher
Hiroshi Takagi
Technical Staff I
Naoko Morita
Technical Staff I
Ryouhei Kurita
Junior Research Associate

Contact Information

403 Chemical Biology Building, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Tel: +81-(0)43-467-4044
Fax: +81-(0)43-462-1353

Email: shunjitaka@riken.jp

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