Laboratories
Biometal Science Laboratory
Yoshitsugu SHIRO
Chief Scientist
Yoshitsugu SHIRO (D.Eng.)
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Research Areas

Studies are concentrated on the structure and function of metalloproteins which are involved in biological redox reactions and in cellular signal transductions. Central problems are elucidation of the molecular mechanisms of the metalloenzymes on the basis of the molecular structures which are determined by the SPring-8 RIKEN beam line, artificial modeling/improvement of metalloprotein functions, and designing of new metalloproteins

Research Subject

  1. Structural and functional analyses of several metalloenzymes
  2. Structural and functional analyses of metalloproteins relating to cellular signal trasnduction
  3. Structural and functional studies of metal-transporters
  4. Development and application of new methods to protein structural determination

Related links

  1. RIKEN SPring-8 Center Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

Press release

February 24, 2012
Crystal structure of archael chromatin clarified in new study
January 23, 2012
New study sheds light on evolutionary origin of oxygen-based cellular respiration
November 26, 2010
Researchers clarify 3D structure of enzyme that produces the greenhouse gas "nitrous oxide"
October 14, 2009
How bacteria sense the world
July 3, 2007
Biometal Science Laboratory of SPring-8 Center in collaboration with Toyama Prefectural University clarified the three-dimensional structure of cytochrome p450StaP, a key enzyme that is involved in the biosynthesis of indrocarbazole, an anti-cancer agent.

RIKEN RESEARCH

December 21, 2012
Exploring the chemistry of iron and organismsNew Window
March 04, 2011
The roots of respiration
The structure of a greenhouse gas-producing bacterial enzyme may yield insights into the evolution of our earliest oxygen-breathing ancestorsNew Window
December 25, 2009
Seeing the sense in it all
Structural details of an environment-sensing protein complex could guide development of new drugs to direct plant growth or combat bacterial infectionNew Window
June 26,2009
Water-powered reactions
Water molecules at the heart of a key enzyme facilitate biosynthesis of an antitumor drugNew Window
January 16,2009
Missing piece gets a work over
New pathways for the biological activity of two little-understood enzymes emerge from a theoretical investigationNew Window
March 21, 2008
The key to controlling DNA copying
Researchers use beamlines at RIKEN’s SPring-8 Center to glean new insights into how replication is regulated New Window
September 14, 2007
Core structures
Japanese scientists describe crystal structures at the heart of antitumor compound synthesis New Window

List of Selected Publications

  1. Sugimoto, H., Oda, S., Otsuki, T., Hino, T., Yoshida, T., and Shiro, Y.:
    "Crystal Structure of Human Indoleamine 2,3-dioxygenase: Insighhts into the Catalytic Mechanism of O2 Incorporation by a Heme-containing Dioxygenase"
    Proc. Natl. Acad. Sci. USA, 103, 2611-2616 (2006)
  2. Kumita, H., Matsuura, K., Hino, S., Hori, H., Fukumori, Y., Morishima, I., and Shiro, Y.:
    "NO Reduction by Nitric Oxide Reductase from Denitrifying Bacterium Pseudomonas aeruginosa: Characterization of Reaction Intermediates That Appear in the Single-Turnover Cycle"
    J. Biol. Chem., 279, 55247-55254 (2004).
  3. Nakamura, H., Kumita, H., Imai, K., Iizuka, T., and Shiro, Y.:
    "ADP Reduces the Oxygen Affinity of a Semsory Histidine Kinase FixL: The Possibility of an Enhanced Reciprocating Kinase Reaction"
    Proc. Natl. Acad. Sci. USA, 101, 2742-2746 (2004).
  4. Y. Matsumoto, T. Tosha, A. V. Pisliakov, T. Hino, H. Sugimoto, S. Nagano, Y. Sugita, Y. Shiro.:
    "Crystal Structure of Quinol-Dependent Nitric Oxide Reductase from Geobacillus stearithermophilus"
    Nat. Strl. Mol. Biol. 19, 238-245 (2012)
  5. S. Yamada, H. Sugimoto, M. Kobayashi, A. Ohno, H. Nakamura, Y. Shiro.:
    "Structure of PAS-linked Histidine Kinase and the Response Regulator Complex"
    Structure 17, 1333-1344 (2009)
  6. Y. Wang, H. Chen, M. Makino, Y. Shiro, S. Nagano, S. Asamizu, H. Onaka, S. Sason.:
    "Theoretical and Experimental Studies of the Conversion of Chromopyrrolic Acid to an Antitumor Derivative by Cytochrome P450 StaP: The Biological Role of Water Molecules"
    J. Am. Chem. Soc. 131, 6748-6762 (2009)
  7. O. Shoji, T. Fujishiro, H. Nakajima, M. Kim, S. Nagano, Y. Shiro, Y. Watanabe.:
    "Hydrogen Peroxide Dependent Monooxygenations by Tricking the Substrate Recognition of Cytochrome P450BSβ"
    Angw. Chem. Int. Ed. 46, 3656-3659 (2007)
  8. M. Makino, H. Sugimoto, Y. Shiro, S. Asamizu, H. Onaka, S. Nagano.:
    "Crystal Structures and Catalytic Mechanism of Cytochrome P450 StaP That Produces The Indolocarbazole Skeleton"
    Proc. Natl. Acad. Sci. USA 104, 11591-11596 (2007)
  9. H. Mizuno, T. K. Mal, M. Welchli, A. Kikuchi, T. Fukano, R. Ando, J. Jeyakanthan, J. Taka, Y. Shiro, M. Ikura, A. Miyawaki.:
    "Light-dependent Regulation of Structural Flexibility in a Photochromic Fluorescent Protein"
    Proc. Natl. Acad. Sci. USA 105, 9927-9932 (2008)
  10. T. Hino, Y. Matsumoto, S. Nagano, H. Sugimoto, Y. Fukumori, T. Murata, S. Iwata, Y. Shiro.:
    "Structural Basis of Biological N2O Generation by Bacterial Nitric Oxide Reductase"
    Science 330, 1666-1670 (2010)

Members

Principal Investigator

Yoshitsugu SHIRO
Chief Scientist

Staff Scientist

Akeo SHINKAI
Senior Research Scientist
Hiroshi SUGIMOTO
Senior Research Scientist
Hiro NAKAMURA
Senior Research Scientist
Tamao HISANO
Senior Research Scientist
Kumarevel THIRUMANANSERI
Senior Research Scientist
Takehiko TOSHA
Senior Research Scientist

Postdoctoral Fellow

Akihiro DOI
Postdoctoral Researcher

Student Trainee

Nozomi SATO
Junior Research Associate