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最近の研究業績

最近の研究業績

  • T. Fujii, Y. Goda, M. Yoshida, T. Oikawa, Y. Hata, Crystallization and preliminary X-ray diffraction studies of maleyacetate reductase from Rhizobium sp. strain MTP-10005, Acta Crystallogr. F64, 737-739 (2008).
  • 郷上佳孝，松島由貴，老川典夫，イネのセリンラセマーゼ：マグネシウム（Ⅱ）イオンによる構造変化と２酵素活性の制御，微量栄養素研究，25，69-71（2008）.
  • Y. Gogami, K. Ito, Y. Kamitani, Y. Matsushima, T. Oikawa, Occurrence of D-serine in rice and characterization of rice serine racemase, Phytochemistry, 70, 380-387 (2009).
  • D. Matsui, T. Oikawa, N. Arakawa, S. Osumi, F. Lausberg, N. Stabler, R. Freudi, L. Eggeling, A periplasmic, pyridoxal-5'-phosphate-dependent amino acid racemase in Pseudomonas taetrolens, Appl. Microbiol. Biotechnol. 83, 1045-1054 (2009).
  • Y. Masuda, A. Matsumoto, T. Toida, T. Oikawa, K. Ito, H. Nanba, Characterization and antitumor effect of a novel polysaccharide from Grifola frondosa, J. Agric. Food Chem. 11, 10143-10149 (2009).
  • 松井大亮, 老川典夫,アルギニンラセマーゼは微生物がD-リリンを栄養素として利用するために必要な酵素である,微量栄養素研究, 26, 84-87（2009）.
  • 郷上佳孝, 老川典夫,イネのセリンラセマーゼのGlu219とAsp225はマグネシウム（Ⅱ）イオンの結合に関与する,微量栄養素研究, 26, 26-28（2009）.
  • Y. Gogami, A. Kobayashi, T. Ikeuchi, T. Oikawa, Site-directed mutagenesis of rice serine racemase: evidence that Glu219 and Asp225 mediate the efffects of Mg2+on the activity, Chemistry & Biodiversity, 7, 1579-1590 (2010).
  • D. Matsui, T. Oikawa, Detection and function of the intramolecular disulfide bond in arginine racemase: an enzyme with broad substrate specificity, Chemistry & Biodiversity, 7, 1591-1602 (2010).
  • D. Matsui, T. Oikawa, Detection of D-ornithine extracellularly produced by Corynebacterium glutamicum ATCC 13032::argF, Biosci. Biotechnol. Biochem. 74, 2507-2510 (2010).
  • K. Yoneda, H. Sakurada, I. Muraoka, T. Oikawa, T. Ohshima, Crystal structure of UDP-galactose 4-epimerase-like L-threonine dehydrogenase belonging to the intermediate short-chain dehydrogenase-reductase superfamily, the FEBS journal, 277, 5124-5132 (2010).
  • O. Kato, JW. Youn, KC. Stansen, D. Matsui, T. Oikawa, VF. Wendisch, Ouinone-dependent D-lactate dehydrogenase Dld (Cg1027) is essential for growth of Corynebacterium glutamicum on D-lactate, BMC Microbiol. 10, 321, (2010).
  • N. Stäbler, T. Oikawa, M. Bott, L. Eggeling, Corynebacterium glutamicum as a host for synthesis and export of D-amino acids, J. Bacteriol. 193, 1702-1709 (2011).
  • Y. Gogami, K. Okada, T. Oikawa, High-performance liquid chromatography analysis of naturally occurring D-amino acid in sake. J. Chromatogr B, 879, 3259-3267 (2011).
  • 郷上佳孝, 保井美穂, 岡田かおり, 老川典夫, 日本酒原料米中のD-及びL-アミノ酸含有量の地域差と局在性, 微量栄養素研究28, 1-9 (2011).
  • 岡田かおり, 郷上佳孝, 老川典夫, 日本酒中のD-アミノ酸の定量と生成機構の解析, 微量栄養素研究 28, 65-69 (2011).
  • 郷上佳孝, 岡田かおり, 森山昌和、溝口晴彦、老川典夫, 生酛,乳酸菌添加生酛,速醸酛造りの日本酒醸造工程中の D-アミノ酸の定量的解析, 微量栄養素研究29, 1-6 (2012).
  • 岡田かおり, 郷上佳孝, 老川典夫, 黒酢及び米酢中の D- 及び L-アミノ酸の定量的解析, 微量栄養素研究 29, 62-66 (2012).
  • K. Okada, Y. Gogami, T. Oikawa, Principal component analysis of the relationship between the D-amino acid concentrations and the taste of the sake, Amino Acids,44, 489-498 (2013).
  • Y. Uchida, H. Hayashi, T. Washio1, R. Yamasaki1, S. Kato, and T. Oikawa, Cloning and characterization of a novel fold-type I branched-chain amino acid aminotransferase from the hyperthermophilic archaeon Thermococcus sp. CKU-1, 18, 589-602 (2014).