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Naturalistic study on utilization of metal ions concerned with evolution and biodiversity.

Research Project

Project/Area Number 09839017
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 自然史科学
Research InstitutionHiroshima University

Principal Investigator

UYAMA Taro  Hiroshima University, Faculty of Science, Lecture, 理学部, 講師 (60232914)

Co-Investigator(Kenkyū-buntansha) UEKI Tatsuya  Hiroshima University, Faculty of Science, Assistant, 理学部, 助手 (10274705)
KANAMORI Kan  Toyama University, Faculty of Science, Professor, 理学部, 教授 (00019001)
MICHIBATA Hitoshi  Hiroshima University, Faculty of Science, Professor, 理学部, 教授 (00111740)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1999: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsAscidian / Metal Accumulation / Vanadium / Reduction / Metal-Binding Protein / Metal Transporter / 原索動物 / 環形動物 / 組み換えタンパク質 / 遺伝子 / サザンプロット / 濃縮機構 / 還元機構 / ペントースリン酸経路
Research Abstract

Ascidians, known as tunicates or sea squirts (Chordata, Urochordata, Ascidiacea), accumulate extremely high levels of vanadium in vanadocytes, one of their approximately ten types of blood cell. The vanadium concentration in vanadocytes can reach 350 mM, corresponding to 10ィイD17ィエD1 times the level in seawater, where vanadium is dissolved at a concentration of 35 nM. This is thought to be the highest rate of concentration of a metal in any living organism.
We have revealed by the research project followings: a vanadium-associated protein (VAP) extracted from the blood cells of Ascidia sydneiensis samea was revealed to contain 16 atoms of vanadium per a mol; the same antigen recognized with a polyclonal antibody against VAP was detected in the precipitated proteins of the polychaete Pseudopotamilla occelata which was first animal revealed to contain high levels of vanadium besides ascidians; G6PDH, 6PGDH, and transketolase in the pentose phosphate pathway and glycogen phosphorylase were found to be in the cytoplasm of vanadocytes ; NADPH was revealed to reduce VィイD1VィエD1-EDTA to VIィイD1IVィエD1-EDTA ; ascidian Nramp homolog, named AsNramp2, have been isolated from cDNA library of blood cells of vanadium-rich ascidian, A. sydneiensis samea. The deduced amino acid sequence showed a striking similarity to the known Nramp2 from various organisms.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (47 results)

All Other

All Publications (47 results)

  • [Publications] Michibata,H.: "Vanadocytes,cells hold the key to resolving the highly selective accumulation and reduction of vanadium in ascidians"Microscop.Res.Tech.. (in preess). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 道端 齊: "海水中の金属イオンを高選択的かつ高濃度に濃縮するホヤの生理機能とその応用の可能性"日本海水学会誌. 77. 157-161 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kanamori,K.: "Direct reduction from vanadium(V) to vanadium(IV) by NADPH in the presence of EDTA.A consideration of the reduction and accumulation of vanadium in the ascidian blood cells"J.Inorg.Biochem.. 711. 248-258 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Michibata,H.: "The accumulation mechanism of vanadium by ascidians -An interdisciplinary study between biology and chemistry on extraordinary high levels and reduced fom of vanadium in vanadocytes"Am.Chem.Soc.Symp.Ser.. 15. 823-829 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki,T.: "Isolation of cDNAs encoding subunits A and B of the vacuolar-type ATPase from the vanadium-rich ascidiam,Ascidia sydneiensis samea"Zool.Sci.. 15. 248-258 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama,T.: "A 100-kDa antigen recognized by a newly prepared monoclonal antibody specific to the vanadcytes of the vanadium-rich ascidian,Ascidia sydneiensis samea,is glycogen phosphorylase"Zool.Sci.. 15. 815-821 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama,T.: "6-Phoshogluconate dehydrogenase is a 45-kDa antigen recognized by S4D5,a monoclona antibody specific to vanadocytes in the vanadium-rich ascidian, Ascidia sydneiensis samea"J.Biochem.. 124. 377-382 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama,T.: "Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of the vanadium-rich ascidian,Ascidia sydneiensis samea"Zool.Sci.. 15. 441-446 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Wuchiyama,J.: "Preparation and localization anibody against a vanadium-associated Protein extracted from the blood cells of the canadium-rich ascidian,Ascidia sydneiensis samea"Zool.Sci.. 14. 409-414 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nose,T.: "Specific increase in the number of vanadium-containing blood cells by some ionophores and inhibitors of protein-ATPases in the ascidian, Ascidia sydneieneis samea"Zool.Sci.. 14. 205-210 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama,T.: "Finding of the same antigens in the polychaeta,Pseudopotamilla occelata,as those in the vanadium-rich ascidian,Ascidia sydneiensis samea"Zool.Sci.. 14. 43-47 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kanda,T.: "Identification and localization of a vanadium-associated protein from the vanadium-rich ascidian,Ascidia sydneiensis samea"Zool.Sci.. 14. 37-42 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama,T.: "Highly selective accumulation of vanadium by ascidians from seawater-An approach from concerted study between biological and chemical viewpoint"Proc.I.T.I.T.Int.Symp.New Technol.Marine-Sphere. 75-78 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Michibata, H.: "Vanadocytes, cells hold the key to resolving the highly selective accumulation and reduction of vanadium in ascidians."Microscop. Res. Tech.. (in press). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Michibata, H.: "Physiological function of selective accumulation of vanadium in ascidians from sea water and its possible application."Bull. Soc. Sea Water Sci., Japan. 53. 248-257 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kanamori, K.: "Direct reduction from vanadium(V) to vanadium(IV) by NADPH in the presence of EDTA. A consideration of the reduction and accumulation of vanadium in the ascidian blood cells."J. Inorg. Biochem.. 77. 157-161 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Michibata, H.: "The accumulation mechanism of vanadium by ascidians -An interdisciplinary study between biology and chemistry on extraordinary high levels and reduced form of vanadium in vanadocytes."Am. Chem. Soc. Symp. Ser.. 711. 248-258 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki, T.: "Isolation of cDNAs encoding subunits A and B of the vacuolar-type ATPase from the vanadium-rich ascidian, Ascidia sydneiensis samea.."Zool. Sci.. 15. 823-829 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama, T.: "A 100-kDa antigen recognized by a newly prepared monoclonal antibody specific to the vanadocytes of the vanadium-rich ascidian. Ascidia sydneiensis samea, is glycogen phosphorylase."Zool. Sci.. 15. 815-821 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama, T.: "6-Phosphogluconate dehydrogenase is a 45-kDa antigen recognized by S4D5, a monoclonal antibody specific to vanadocytes in the vanadium-rich ascidian, Ascidia sydneiensis samea."J. Biochem.. 124. 377-382 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama, T.: "Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of the vanadium-rich ascidian. A cidia svdneiensis samea."Zool. Sci.. 15. 441-446 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Wuchiyama, J.: "Preparation and localization of a monoclonal antibody against a vanadium-associated protein extracted from the blood cells of the vanadium-rich ascidian. Ascidia sydneiensis samea."Zool. Sci.. 14. 409-414 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nose, T.: "Specific increase in the number of vanadium-containing blood cells by some ionophores and inhibitors of proton-ATPases in the ascidian Ascidia sydneiensis samea."Zool. Sci.. 14. 205-210 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama, T.: "Finding of the same antigens in the polychaeta. Pseudopotamilla occelata, as those in the vanadium-rich ascidian, Ascidia sydneiensis samea."Zool. Sci.. 14. 43-47 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kanda, T.: "Identification and localization of a vanadium-associated : protein from the vanadium-rich ascidian, Ascidia sydneiensis samea."Zool. Sci.. 14. 37-42 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uyama, T.: "Highly selective accumulation of vanadium by ascidians from seawater -An approach from concerted study between I biological and chemical viewpoint."Proc. I. T. I. T. Int. Symp. New Technol. Marine-Sphere. 75-78 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Michibata,H.: "Vanadocytes,cells hold the key to resolveving the highly selective accumulation and reduction of vanadium in ascidians."Microscop.Res.Tech.. in press. (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kananori,K.: "Direct reduction from vanadium(V) to vanadium(IV) by NADPHin the presence of EDTA,A consideration of the reduction and accumulation of vanadiumin the ascidian blood cells."J.Innorg.Biochem.. 77. 157-161 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 道端 齊: "海水中の金属イオンを高選択的かつ高濃度に濃縮するホヤの生理機能とその応用の可能性"日本海水学会誌. 53. 248-257 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Michibata,H.: "Vanadocyte is a cell holding the key to resolve the highly selective accumulation and reduction of vanadium in ascidians." Microscop.Res.Technol.in press.(1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Michibata,H.: "The accumulation mechanism of vanadium by ascidians-An interdisciplinary stydy between biology and chemistry on extraordinary high levels and reduced form of vanadium in vanadocvtes." Am.Chem.Soc.Symp.Ser.711. 248-258 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Michibata,H.: "Selective accumulation of vanadium by ascidians from seawater." Adv.Environm.Sci.& Technol.edit.Nriagu J.John Wiley & Sons,Inc.217-249 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ueki,T.: "Isolation of cDNAs encoding subunits A and B of the vacuolar-type ATPase from the vanadium-rich ascidian,Ascidia sydneiensis samea." Zool.Sci.15. 823-829 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T.: "A 100-kDa antigen recognized by a newly prepared monoclonal antibody specific to the vanadocytes of the vanadium-rich ascidian,Ascidia sydneiensis samea,is glycogen phosphorvlase." Zool.Sci.15. 815-821 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T.: "Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of the vanadium-rich ascidian,Ascidia sydneiensis samea." Zool.Sci.15. 441-446 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T.: "6-phosphogluconate dehydrogenase is a 45 kDa-antigen recognized by a monoclonal antibody S4D5 specific to vanadocytes in the vanadium-rich ascidian,Ascidia sydneiensis samea." J.Biochem.124. 377-382 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 道端 齊: "ホヤのバナジウム濃縮に携わる特異な細胞、バナドサイトの謎を探る." 生物物理. 37. 315-320 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T.: "Highly selective accumulation of vanadium by ascidians from sea water -An approach from concerted study between biological and chemical viewpoint." Proc.I.T.I.T.Int.Symp.New Technol.Marine-Sphere. 75-78 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kanamori,K.: "Reduction of vanadium(IV)to vanadium(III)by cysteine methyl ester in water in the presence of amino polycarboxylates." Chem.Letters. 423-424 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Wuchiyama,J.: "Preparation and Iocalization of a monoclonal antibody against a vanadium-associated protein extracted from the blood cells of the vanadium-rich ascidian,Ascidia sydneiensis samea." Zool.Sci.14. 409-414 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Nose,Y.: "Specific increase in the number of vanadium-accumulating blood cells by some ionophores and inhibitors of proton-ATPases in the ascidian,Ascidia sydneiensis samea." Zool.Sci.14. 199-204 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kanda,T.: "Identification of a vanadium-associated protein from the vanadium-rich ascidian,Ascidia sydneiensis samea." Zool.Sci.14. 37-42 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T.: "Finding of the same antigen in the polychaeta,Pseudopotamilla occelata,as those in the vanadium-rich ascidian,Ascidia sydneiensis samea." Zool.Sci.14. 43-47 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Uyama,T: "6-Phosphogluconate dehydrogenase is a 45 kDa-antigen recognized by a monoclonal antibody S4D5 specific to vanadocytes in the vanadium-rich ascidian,Ascidia sydneiensis samea." The Journal of Biochemistry. (in press.). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Uyama,T: "Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of vanadium-rich ascidian,Ascidia sydneiensis samea." Zoological Science. (in press.). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Michibata,H.: "Selective accumulation of vanadium by ascidians from sea water. In “Vanadium in the Environment. Part 1:Chemistry and Biochemistry"" Edited by Nriagu J O,John Wiley & Sons,Inc.(in press), (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Michibata,H.: "The accumulation mechanism of vanadium by ascidians. In “Proc.Symp.Chemistry,Biochemistry and Therapeutic Applications of Vanadium Compounds." Edited by Tracey,A.and Crans,D.C.,Am.Chem.Soc.(in press), (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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