Laboratories
Chemical Biology Core Facility
Hiroyuki OSADA
Laboratory Director
Hiroyuki OSADA (D.Agr.)
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Research Areas

To promote "Chemical Biological Research" that aims to elucidate biological phenomena using chemical compounds as starting materials, chemical libraries and databases that describe the chemical and biological information of the libraries must be appropriately maintained. Our facility will construct chemical libraries and databases through the genetic and organic chemical researches of secondary metabolites from actinomycetes and fungi. We will also promote basic research to validate the usefulness of the chemical library, to identify the molecular target of the active compound, and to elucidate the mechanism behind the action of the active compounds in the libraries. We will continue to maintain infrastructure for chemical biological studies. Five research teams involved in this facility are to cooperate together closely and actively, in order to promote the missions of the research program.

Research Subject

  1. Construction of a chemical bank, "Natural Products Depository (NPDepo)"
  2. Expansion of the chemical library using genetic engineering and synthetic chemistry.
  3. Evaluation of the chemical library through high throughput screening systems.
  4. Structural analyses of small molecules, proteins and their complexes using high technologies.
  5. Research support based on the advanced research techniques

Related links

  1. RIKEN Advanced Science Institute Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

Press release

August 16, 2010
Small-molecule inhibitor uncovers protein role in melanoma cell migration
August 12, 2008
Clarification of an inhibiting factor for the differentiation to osteoclasts in bone metabolism

RIKEN RESEARCH

July 01,2011
Stopping malignancy in its tracks
A newly discovered natural product produced by a fungus prevents cancer cells from becoming malignantNew Window

List of Selected Publications

  1. Nogawa T, Takahashi S, Okano A, Kawatani M, Uramoto M, Saito T, and Osada H.:
    "Spirotoamides A and B, novel 6,6-spiroacetal polyketides isolated from a microbial metabolite fraction library"
    J Antibiot. 10, 1038- (2011)
  2. Takayama H, Takahashi S, Moriya T, Osada H, Iwabuchi Y, and Kanoh N.:
    "Detection of cytochrome P450 substrates by using a small-molecule droplet array on an NADH-immobilized solid surface"
    ChemBioChem. 12, 2715 (2011)
  3. Jang J.-H., Asami Y., Jang J.-P., Kim S.-O., Moon D.O., Shin K.-S., Hashizume D., Muroi M., Saito T., Oh H., Kim B.-Y., Osada H. and Ahn J.-S.:
    "Fusarisetin A, an Acinar Morphogenesis Inhibitor from a Soil Fungus, Fusarium sp. FN080326"
    J Am Chem Soc. 133, 6865-6867 (2011)
  4. Kato N., Tokuoka M., Shinohara Y., Kawatani M., Uramoto M., Seshime Y., Fujii I., Kitamoto K., Takahashi T., Koyama Y., and Osada H.:
    "Genetic safeguard against mycotoxin cyclopiazonic acid production in Aspergillus oryzae."
    ChemBioChem 12, 1376-1382 (2011)
  5. Nogawa T., Okano A., Takahashi S., Uramoto M., Konno H., Saito T., and Osada H.:
    "Verticilactam, a new macrolactam isolated from a microbial metabolite fraction library"
    Org Lett, 12, 4564-4567, (2010).
  6. Miyazaki, I., Simizu, S., and Osada, H.:
    "A small-molecule inhibitor shows that pirin regulates migration of melanoma cells."
    Nature Chem. Biol., 6, 667-673,(2010)
  7. Sun, Y., Hahn, F., Demydchuk, Y., Chettle, J., Tosin, M., Osada, H.,and Leadlay, P. F.:
    "In vitro reconstruction of tetronate RK-682 biosynthesis."
    Nature Chem. Biol, 6, 99-101 (2010)
  8. Osada H.:
    "Introduction of new tools for chemical biology research on microbial metabolites."
    Biosci Biotechnol Biochem., 74, 1135-1140, (2010)
  9. Izuchi Y., Koshino H., Hongo Y., Kanomata N., and Takahashi S.:
    "Synthesis and Structural Revision of Phomopsin B, a Novel Polyketide Carrying a 10-Membered Cyclic-Ether Ring"
    Org. Lett., 13, 3360-3363 (2011)
  10. Kurokawa, K., Lee, H., Roh, KB., Asanuma, M., Kim, YS., Nakayama, H., Shiratsuchi, A., Choi, Y., Takeuchi, O., Kang, HJ., Dohmae, N., Nakanishi, Y., Akira, S., Sekimizu, K., and Lee, BL.:
    "The triacylated ATP binding cluster transporter substrate-binding lipoprotein of Staphylococcus aureus functions as a native ligand for Toll-like receptor 2."
    J. Biol. Chem. 284, 8406-11 (2009)

Members

Principal Investigator

Hiroyuki OSADA
Laboratory Director


NPD