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Analysis of interaction between a novel PDZ protein and glutamate receptor δ subunit C-terminus.

Research Project

Project/Area Number 11680610
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural biochemistry
Research InstitutionYokohama City University

Principal Investigator

KAWAMOTO Susumu  Yokohama City University, Department of Bacteriology, Associate Professor, 医学部, 講師 (80125921)

Co-Investigator(Kenkyū-buntansha) MIYAGI Yohei  Kanagawa Cancer Center, Investigator, 臨床研究所, 医長(研究職) (00254194)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2000: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsGlutamate receptor / Ion channel / δ2 subunit / PDZ domain / PDZ protein / Surface plasmon resonance / Scafolding protein / Protein-protein interferon
Research Abstract

We identified a novel GluRδ2-interacting protein, named Delphilin (formerly δ2SIP, GenBank accession # AA869045), containing a PDZ domain. Because a PDZ domain is a binding motif generally recognizing the C-terminus of its target proteins, we assayed Delphilin interaction with various C-terminal mutants of the GluRδ2 subunit by yeast two-hybrid analysis and by surface plasmon resonance (SPR) analyses using BIAcore, which effectively monitor interactions between macromolecules in real time. In SPR experiments, a solution of a glutathione Stransferase (GST) fusion protein of Delphilin PDZ was passed over two flow cells : one immobilized with the GluRδ2 C-terminal 8-residue peptide (DPDRGTSI), and one with the GIuRδ1 corresponding peptide (DTSHGTSI). The Delphilin PDZ exhibited a specific binding to the C-terminal peptide of GluRδ2, but not of GluRδ1. From these results, it appears that the PDZ domain of Delphilin interacts directly with the C-terminus of GluRδ2 and that amino acids-6 to -4 of the C-terminus may critically contribute to the binding. In yeast two-hybrid system, Delphilin-PDZ domain, containing the adjacent area, had more affinity to the target GluRδ2 C-terminal than the original Delphilin-PDZ and the area (amino acid 227 to 352) of Delphilin seemed to have negative effect on the interaction between Delphilin-PDZ and GluRδ2 C-terminus. In SPR experiments, it was also suggested that the phosphorylation of δ2 C-terminal Ser (-1 position) or Thr (-2 position) may interefere with the interaction.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Kawamoto,S.: "Expression of NMDA Receptor Channel Subunit Proteins Using Baculovirus and Herpesvirus Vectors."Methods in Molecular Biology. 128. 19-32 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nakamura,F.: "Isolation of Receptor Clones by Expression Screeningin Xenopus oocytes."Methods in Molecular Biology. 128. 1-18 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawamoto,S.: "Delphilin, a Novel PDZ Protein Interacting with Glutamate Receptor δ2 Subunit."Society for Neuroscience Abstracts. 26・2. 1918 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 川本進: "グルタミン酸受容体δ2サブユニットのC末端に結合する新規PDZタンパク質(Delphilin)の分子クローニングとその解析"生化学. 72・8. 1018 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 川本進: "Delphilin:グルタミン酸受容体δ2サブユニットのC末端に結合する新規PDZタンパク質"第23回日本神経科学大会・第10回日本神経回路学会 大会合同大会 プログラム・抄録集. 295 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 宮城洋平: "グルタミン酸受容体δ2サブユニットのC_-末端に結合するタンパク質Delphilin/δ2SIPのヒトcDNA単離と染色体位置の決定"第23回日本分子生物学会年会 プログラム・講演要旨集. 743 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 川本進: "タンパク質実験ノート(上)抽出と分離精製"岡田雅人,宮崎香(羊土社). 194 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Kawamoto: "Expression of NMDA receptor channel subunit proteins using baculovirus and herpesvirus vectors"Methods in Molecular Biology "NMDA Receptor Protocols" (Min Li, ed.) Humana Press (Totowa, NJ). vol.128. 19-32 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] F.Nakamura: "Isolation of receptor clones by expression screening in Xenopus oocytes."Methods in Molecular Biology "NMDA Receptor Protocols" (Min Li, ed.) Humana Press (Totowa, NJ). vol.128. 1-18 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Kawamoto: "Delphilin : a novel PDZ protein interacting with the orphan glutamate receptor δ2 subunit."Society for Neuroscience Abstract. 26(2). 1918 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawamoto,S: "Delphilin, a Novel PDZ Protein Interacting with Glutamate Receptor δ2 Subunit"Society for Neuroscience Abstracts. 26・2. 1918 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 川本進: "グルタミン酸受容体δ2サブユニットのC末端に結合する新規PDZタンパク質(Delphilin)の分子クローニングとその解析"生化学. 72・8. 1018 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 山下哲司: "グルタミン酸受容体δ2サブユニットC-末端に結合する新規タンパク質DelphilinのcDNAクローニングとその構造・発現・機能解析"第23回日本神経科学大会・第10回日本神経回路学会大会合同大会プログラム・抄録集. 96 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 川本進: "Delphilin:グルタミン酸受容体δ2サブユニットのC末端に結合する新規PDZタンパク質"第23回日本神経科学大会・第10回日本神経回路学会大会合同大会プログラム・抄録集. 295 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 山下哲司: "グルタミン酸受容体δ2サブユニットのC末端に結合する蛋白質cDNAクローン(MB11)の解析"第23回日本分子生物学会年会プログラム・講演要旨集. 743 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 宮城洋平: "グルタミン酸受容体δ2サフユニットのC-末端に結合するタンパク質Delphilin/δ2SIPのヒトcDNA単離と染色体位置の決定"第23回日本分子生物学会年会プログラム・講演要旨集. 743 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawamoto, S.: "Expression of NMDA Receptor Channel Subunit Proteins Using Baculovirus and Herpesvirus Vectors."Methods in Molecular Biology. 128. 19-32 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nakamura, F.: "Isolation of Receptor Clones by Expression Screening in Xenopus oocytes."Methods in Molecular Biology. 128. 1-18 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 川本, 進: "タンパク質実験ノート(上) 抽出と分離精製"岡田雅人, 宮崎香(羊土社). 194 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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