• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

好中球活性化因子LECTスレセプターのX線結晶構造解析

Research Project

Project/Area Number 13033045
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

鈴木 和男  国立感染症研究所, 生物活性物質部・第三室, 室長 (20192130)

Co-Investigator(Kenkyū-buntansha) 山越 智  国立感染症研究所, 生物活性物質部, 研究員 (00212283)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2001: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywordsサイトカイン / LECT2 / 蛋白質高次構造 / 核磁共鳴スペクトル / X線結晶構造解析 / 慢性関節リウヤチ / 遺伝子多型 / 好中球 / レセプター / NMR / 血管炎
Research Abstract

本研究では、サイトカインLECT2(leukocyte cell-derived chemotaxin 2)の高次構造解析を、核磁共鳴スペクトル(NMR)とX線結晶構造解析を用いて行った。慢性関節リュウマチ患者においては、LECT2の58番目のVal残基がIle残基に置換されている患者ほど、疾病の重篤度が高いことが明らかになった。LECT2の機能発現に58番目のVal残基のメチレン基1つ分の役割がいかに重要かを明らかにし、LECT2とリュウマチとの因果関係を突きとめる為にLECT2の立体構造を明らかにすることを目的とした。
本研究により、1)NMRを用いた高次構造解析については、安定同位体標識したサンプル調製法の確立とNMR測定とスペクトルの解析を行った。主鎖のスペクトル帰属はほぼ完了し、二次構造情報まで得られた。
2)X線結晶構造解析については、動物細胞による発現系を用いて前年度から引き続き進めており、位相決定に向けて結晶化条件の精密化を行った。その結果、以前よりも大きく良質な結晶を得ることに成功した。

Report

(2 results)
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Mie Ito, Oda, Yamagoe S., Suzuki K, Tanokura, M.: "Expression, oxidative refolding and characterization of six-histidine-tagged recombinant human LECT2, a 16 kDa chemotactic protein with three disulfide bonds"Protein Expression Purif.. 27(2). 272-278 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Frederik Vilhardt, Olivier Plastre, Makoto Sawada, Kazuo Suzuki, Maciej Wiznerowicz, Etsuko Kiyokawa, DidierTrono, Karl-Heinz Krause: "The HIV-1 Nef Protein and Phagocyte NADPH Oxidase Activation"J Biol.Chem. 277. 42136-42143 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Aratani, Y., Kura, F., Watanabe, H, Akagawa, H., Takano, Y, Suzuki, K., Dinauer, M.C., Maeda, N., Koyama, H: "Relative contributions of myeloperoxidase and NADPH-oxidase to the early host defense against pulmonary infections with Candida albicans and Aspergillus fumigatus"Med.Mycol. 40. 557-563 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kohji Ichimori, Naoto Fukuyama, Hiroe Nakazawa, Yasuaki Aratani, Hideki Koyama, Shunya Takizawa, Yosuke Kmeoka, Akiko Ishida-Okawara, Fumikazu Kohi, Kazuo Suzuki: "Myeloperoxidase has directly-opposed effects on nitration reaction -study on myeloperoxidase-deficient patient and myeloperoxiclase-knockout mice"Free Radical Research.. (in press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Aratani, Y, Kura, F., Watanabe, H, Akagawa, H., Takano, Y, Suzuki, K., Dinauer, M.C., Maeda, N., Koyama, H: "Critical role of myeloperoxidase and NADPH-oxidase in high-burden systemic infection of mice 4th Candida albicans"J.Infect.Dis. 185. 1833-1837 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鈴木和男: "SCG/KjマウスとANCA関連血管炎-血管炎病態に関与する好中球機能:動物モデルを用いた解析から-"リウマチ科. 28. 570-577 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Aratani, Y: "Critical role of myeloperoxidase and NADPH-oxidase in high-burden systemic infection of mice with Candida albicans"J.Infect.Dis.. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] A.Ishida-Okawara: "Contribution of myeloperoxidase to coronary artery vasculitis associated with MPO-ANCAproduction"Inflammation.. 25. 381-387 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] W.K.Dawson: "Aphysical origin for functional domain structure in nucleic acids as evidenced by cross linking entropy. partII"J.Theor.Biol.. 213. 387-412 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] W.K.Dawson: "Aphysical origin for functional domain structure in nucleic acids as evidenced by cross linking entropy. partI"J.Theor.Biol.. 213. 359-386 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Suzuki: "Neutrophil functions of patients with vasculitis related to MPO-ANCA"International Journal of Hematology. 74. 134-143 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Suzuki: "Neutrophil functions of patients with vasclitis related to MPO-ANCA(Review)"International Journal of Hematology. 74. 134-143 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Suzuki: "Bioinaging of chemotaxis/migration and adhesion for transmigration of neutrophils with special reference to neutrophil functions(Review)"Bioimages. 9. 1-14 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Segawa: "Possible changes in expression of a chemotaxin LECT2 mRNA in mouse livers after concanavalin A-induced hepatic injury"Biol.Pharm.Bull.. 24. 425-428 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Aratani: "Differential host susceptibility to pulmonary infections with bacteria and fungi in mice deficient in myeloperoxidase"J.Infectious Diseases. 182. 1276-1279 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Kawai: "Modulation of chemotaxis, O_<2-> production and myeloperoxidase release from human polymorphonuclear leukocytes by the ornithine-containing lipid and serineglycine-containing lipid of Flavobacterium"FEMS Immunol. Med. Microbiol.. 28. 205-209 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kameoka, Y.: "Val58Ile polymorphism of the neutrophil chemoattractant LECT2 and rheumatoid arthritis in the Japanese population"Arthritis and Rheumatism. 43. 1419-1420 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujii, A.: "Epitope analysis of myeloperoxidase-specific anti-neutrophil Cytoplasmic antibody(MPO-ANCA)associated glomerulonephritis"Clin. Nephrology. 53. 242-252 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Suzuki: "The Peroxidase Multigene Family of Enzymes."Nauseef W.M.. 145-149 (2000)

    • Related Report
      2001 Annual Research Report

URL: 

Published: 2001-04-01   Modified: 2018-03-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi