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Basic studies for drug discovery using adhesin domain protein and interdomain regional peptide of Porphyromonas gingivalis

Research Project

Project/Area Number 19592151
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional basic dentistry
Research InstitutionNagasaki University

Principal Investigator

SAKAI Eiko  Nagasaki University, 医歯薬学総合研究科, 助教 (10176612)

Co-Investigator(Kenkyū-buntansha) 中山 浩次  長崎大学, 医歯薬学総合研究科, 教授 (80150473)
岡元 邦彰  長崎大学, 医歯薬学総合研究科, 准教授 (10311846)
内藤 真理子  長崎大学, 医歯薬学総合研究科, 准教授 (20244072)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords歯科薬理学 / 歯学 / 薬理学 / 細菌 / タンパク質 / 糖鎖 / 蛋白質
Research Abstract

歯周病原細菌Porphyromonas gingivalisのrgp A遺伝子産物であるHGP44のN末端アミノ酸を欠失させた変異蛋白を作成し、赤血球凝集活性を調べた。N末端20アミノ酸を欠失すると血球凝集活性が消失したため、この領域が活性中心である可能性が考えられた。シアル酸のはずれた糖蛋白と結合しやすく、また赤血球凝集の強さが動物種によって異なることからGalBl-4GlcNAcの糖鎖を介して糖蛋白と結合している可能性が示唆された。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (4 results)

All 2008 2007

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (1 results)

  • [Journal Article] Determination of active site of lysine-specific cysteine proteinase (Lys-gingipain) by use of a Porphyromonas gingivalis plasmid system2008

    • Author(s)
      Ishida Y., Hu J. P., Sakai E., Kadowaki T., Yamamoto K., Tsukuba T., Kato Y., Nakayama K., Okamoto K
    • Journal Title

      Arch Oral Biol 53(6) 53(6)

      Pages: 538-544

    • NAID

      120006984583

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Construction of recombinant hemagglutinin derived from the gingipain-encoding gene of Porphyromonasgingivalis, identification of its target protein on erythrocytes, and inhibition of hemagglutination by an interdomain regional peptide2007

    • Author(s)
      Sakai E., Naito M. , Sato K. , Hotokezaka H., Kadowaki T., Kamaguchi A., Yamamoto K., Okamoto K., Nakayama K
    • Journal Title

      J. Bacteriol. 189(11) 189(11)

      Pages: 3977-3986

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Construction of Recombinant Hemagglutinin Derived from the Gingipain-Encoding Gene of Porphyromonas gingivalis, Identification of Its Target Protein on Erythrocytes, and Inhibition of Hemagglutination by an Interdomain Regional Peptide2007

    • Author(s)
      Eiko Sakai
    • Journal Title

      Journal of Bacteriology 189

      Pages: 3977-3986

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 歯周病細菌Porphyrpmonas ginivalisの赤血球凝集機構の解析2007

    • Author(s)
      中山浩次
    • Organizer
      第39回九州微生物研究会
    • Place of Presentation
      福岡
    • Related Report
      2008 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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