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Molecular, cellular, and developmental studies on AAA chaperones

Research Project

Project/Area Number 14037256
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionKumamoto University

Principal Investigator

OGURA Teru  Kumamoto University, Institute of Molecular Embryology and Genetics, Professor (00158825)

Co-Investigator(Kenkyū-buntansha) YAMANAKA Kunitoshi  Kumamto University, Institute of Molecular Embryology and Genetics, Associate Professor (90212290)
Project Period (FY) 2002 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥138,400,000 (Direct Cost: ¥138,400,000)
Fiscal Year 2006: ¥24,600,000 (Direct Cost: ¥24,600,000)
Fiscal Year 2005: ¥24,600,000 (Direct Cost: ¥24,600,000)
Fiscal Year 2004: ¥26,100,000 (Direct Cost: ¥26,100,000)
Fiscal Year 2003: ¥26,100,000 (Direct Cost: ¥26,100,000)
Fiscal Year 2002: ¥37,000,000 (Direct Cost: ¥37,000,000)
KeywordsAAA protein / chaperone / ATP-dependent protease / ATPase / C.elegans / genetic diseases / protein aggregation / microtubule / トランスロケーション / アンフォールディング / 転写制御 / 大腸菌 / シャペロン / ミトコンドリア / 遺伝性痙性対麻痺 / ポリグルタミン病
Research Abstract

Molecular mechanisms of common activities of AAA chaperones such as ATP hydrolysis and translocation of substrate proteins have been studied. We have proposed an intersubunit catalysis mechanism of ATP hydrolysis by AAA ATPases and a threading model for substrate translocation, and obtained supporting evidence for these models. Mutagenesis of conserved residues at the pore of the hexameric ATPase ring of an AAA protease, FtsH, indicated that the conserved aromatic residue is suggested to act for substrate binding and translocation. It was found that FtsH can initiate proteolysis of flavodoxin by translocating an internal loop to the protease chamber in an ATP dependent manner. We have also found that degradation of unfolded polypeptides by some chimeras of FtsH and its C.eleganshomologs do not require ATP hydrolysis. Firm evidence for the intersubunit catalysis mechanism of ATP hydrolysis by AAA ATPases has been obtained using mutants of the C.elegans fidgetin homolog, FIGL-1. We have also studied cellular functions of some AAA proteins in C.elegaas, which are homologous to causative factors of human genetic diseases. It was found that p97, which is related to inclusion body myopathy associated with Paget disease of bone and frontotemporal dementia, plays important roles in switching from spermatogenesis to oogenesis and progression of meiosis I as well as ERAD. We have observed that overexpression of p97 in C.elegans partially suppresses polyglutamine aggregate formation in vivo and that purified p97 suppresses aggregate formation of huntingtin fragments in an ATP-independent manner in vitro. We have shown spatiotemporally differential expression pattern of six UBX adaptor proteins of p97 in C.elegans. We showed that overexpression of SPAS-1, the C.elegans homolog of spastin related to hereditary spastic paraplegia, caused disassembly of microtubule network, indicating that SPAS-1 is involved in microtubule dynamics.

Report

(6 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (42 results)

All 2007 2006 2004 2003 Other

All Journal Article (24 results) (of which Peer Reviewed: 3 results) Presentation (2 results) Book (2 results) Remarks (1 results) Publications (13 results)

  • [Journal Article] C. elegans RBX-2-CUL-5- and RBX-1-CUL-2-based complexes are redundant for oogenesis and activation of the MAP kinase MPK-1.2007

    • Author(s)
      Sasagawa, Y.
    • Journal Title

      FEBS Lett. 581

      Pages: 145-150

    • Related Report
      2006 Annual Research Report
  • [Journal Article] An AAA protease FtsH can initiate proteolysis from internal sites of a model substrate, apo-flavodoxin.2006

    • Author(s)
      T. Okuno
    • Journal Title

      Genes Cells 11

      Pages: 261-268

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Mutational analysis of the functional motifs in the ATPase domain of C. elegans fidgetin homologue FIGL-1 : Firm evidence for an intersubunit catalysis mechanism of ATP hydrolysis by AAA ATPases.2006

    • Author(s)
      Yakushiji, Y.
    • Journal Title

      J. Struct. Biol. 156

      Pages: 93-100

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Characterization of mutants of the Escherichia coli AAA protease, FtsH, carrying a mutation in the central pore region.2006

    • Author(s)
      Okuno, T.
    • Journal Title

      J. Struct. Biol. 156

      Pages: 109-114

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Flavodoxin, a new fluorescent substrate for monitoring proteolytic activity of FtsH lacking a robust unfolding activity2006

    • Author(s)
      Okuno, T.
    • Journal Title

      J. Struct. Biol. 156

      Pages: 115-119

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Comparative analysis of expression of two p97 homologues in Caenorhabditis elegans.2006

    • Author(s)
      Yamauchi, S.
    • Journal Title

      Biochem. Biophys. Res. Commun. 345

      Pages: 746-753

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 神経疾患とAAA^+蛋白質.2006

    • Author(s)
      松下 由佳
    • Journal Title

      細胞 38

      Pages: 41-44

    • Related Report
      2006 Annual Research Report
  • [Journal Article] タンパク質を解きほぐすAAA_+シャペロン.2006

    • Author(s)
      錦織 伸吾
    • Journal Title

      生物工学 84

      Pages: 404-406

    • Related Report
      2006 Annual Research Report
  • [Journal Article] An AAA protease FtsH can initiate proteolysis from internal sites of a model substrate, apo-flavodoxin.2006

    • Author(s)
      Okuno, T.
    • Journal Title

      Genes Cells 11(3)

      Pages: 261-268

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Flavodoxin, a new fluorescent substrate for monitoring proteolytic activity of FtsH lacking a robust unfolding activity.2006

    • Author(s)
      Okuno, T.
    • Journal Title

      J.Struct.Biol. (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Characterization of mutants of the Escherichia coli AAA protease, FtsH, carrying a mutation in the central pore region.2006

    • Author(s)
      Okuno, T.
    • Journal Title

      J.Struct.Biol. (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mutational analysis of the functional motifs in the ATPase domain of C. elegans fidgetin homologue FIGL-1 : Firm evidence for an intersubunit catalysis mechanism of ATP hydrolysis by AAA ATPases.2006

    • Author(s)
      Yakushiji, Y.
    • Journal Title

      J.Struct.Biol. (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Analysis of the two p97/VCP/Cdc48p proteins of Caenorhabditis elegans and their suppression of polyglutamine・induced protein aggregation.2004

    • Author(s)
      K. Yamanaka
    • Journal Title

      J. Struct. Biol. 146

      Pages: 242-260

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Analysis of the two p97/VCP/Cdc48p proteins of Caenorhabditis elegans and their suppression of polyglutamine-induced protein aggregation.2004

    • Author(s)
      K. Yamanaka
    • Journal Title

      J. Struct. Biol. 146

      Pages: 242-250

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] K. FtsH protease.2004

    • Author(s)
      Y. Akiyama
    • Journal Title

      Handbook of Proteolytic Enzymes, 2nd edition, A. J. Barrett, N. D. Rawlings and J. F. Woessner (ed.) Academic Press

      Pages: 794-798

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Conserved arginine residues implicated in ATP hydrolysis, nucleotide-sensing, and inter-subunit interactions in AAA and AAA^+ ATPase.2004

    • Author(s)
      Ogura, T.
    • Journal Title

      J.Struct.Biol. 146

      Pages: 106-112

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Analysis of the two p97/VCP/Cdc48p proteins of Caenorhabditis elegans and their suppression of polyglutamine-induced protein aggregation.2004

    • Author(s)
      Yamanaka, K.
    • Journal Title

      J.Struct.Biol. 146

      Pages: 242-250

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Spectrometric analysis of degradation of a physiological substrate δ 32 by Escherichia coli AAA protease FtsH.2004

    • Author(s)
      Okuno, T.
    • Journal Title

      J.Struct.Biol. 146

      Pages: 148-154

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Identification of a cysteine residue important for the ATPase activity of C.elegans fidgetin homologue.2004

    • Author(s)
      Yakushiji, Y.
    • Journal Title

      FEBS Lett. 578

      Pages: 191-197

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 蛋白質の細胞内リサイグリングシステム(原核細胞)2004

    • Author(s)
      小椋 光
    • Journal Title

      蛋白質核酸酵素 49

      Pages: 1047-1053

    • Related Report
      2004 Annual Research Report
  • [Journal Article] アンフォールダーゼとしてのAAA蛋白質2004

    • Author(s)
      小椋 光
    • Journal Title

      蛋白質核酸酵素 49

      Pages: 1044-1046

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 線虫を用いたAAA蛋白質に起因する神経変性疾患モデル2004

    • Author(s)
      山中邦俊
    • Journal Title

      蛋白質核酸酵素 49

      Pages: 1124-1126

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Conserved pore residues in the AAA protease FtsH are important for proteolysis and its coupling to ATP hydrolysis.2003

    • Author(s)
      T. Yamada-Inagawa
    • Journal Title

      J. Biol. Chem. 278

      Pages: 50182-50187

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Allelic characterization of the leaf-variegated mutation var2 identifies the conserved amino acid residues of FtsH that are important for ATP hydrolysis and protelysis.

    • Author(s)
      Sakamoto, W.
    • Journal Title

      Plant Mol.Biol. (in press)

    • Related Report
      2004 Annual Research Report
  • [Presentation] AAA family proteases/chaperones2006

    • Author(s)
      Teru Ogura
    • Organizer
      38th Course-The Structure and Function of LargeMolecular Assemblies
    • Place of Presentation
      Erice, Italy
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Presentation] AAA family proteases/chaperones2006

    • Author(s)
      Teru Ogura
    • Organizer
      38th Course-The Structure and Function of Large Molecular Assemblies
    • Place of Presentation
      Erice, Italy.
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] Handbook of Proteolytic Enzymes, 2nd edition, A. J. Barrett, N. D. Rawlings and J. F. Woessner (ed. )Academic Press2004

    • Author(s)
      Y. Akiyama
    • Total Pages
      5
    • Publisher
      FtsH protease.
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] In Handbook of Proteolytic Enzymes, 2nd edition A.J.Barrett, N.D.Rawlings and J.F.Woessner (ed.)2004

    • Author(s)
      Akiyama, Y.
    • Publisher
      Academic Press
    • Related Report
      2004 Annual Research Report
  • [Remarks] 「研究成果報告書概要(和文)」より

    • URL

      http://www.imeg.kumamoto-u.ac.jp/divisions/molecular_cell_biology/

    • Related Report
      2006 Final Research Report Summary
  • [Publications] Yamada-Inagawa, T.: "Conserved pore residues in the AAA protease FtsH are important for proteolysis and its coupling to ATP hydrolysis."J.Biol.Chem. 278. 50182-50187 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Okuno, T.: "Spectrometric analysis of degradation of a physiological substrate σ^<32> by Escherichia coli AAA protease FtsH."J.Struct.Biol.. 146. 148-154 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yamanaka, K.: "Analysis of the two p97/VCP/Cdc48p proteins of Caenorhabditis elegans and their suppression of polyglutamine-induced protein aggregation."J.Struct.Biol.. 146. 242-250 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ogura, T.: "Conserved arginine residues implicated in ATP hydrolysis, nucleotide-sensing, and inter-subunit interactions in AAA and AAA^+ ATPases."J.Struct Biol.. (in press).

    • Related Report
      2003 Annual Research Report
  • [Publications] 奥野 貴士: "AAA ATPaseの構造とタンパク質リモデリングの分子機構"生物物理. 43. 244-247 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 小椋 光: "蛋白質の細胞内リサイグリングシステム(原核細胞)"蛋白質核酸酵素. (in press).

    • Related Report
      2003 Annual Research Report
  • [Publications] 小椋 光: "アンフォールダーゼとしてのAAA蛋白質"蛋白質核酸酵素. (in press).

    • Related Report
      2003 Annual Research Report
  • [Publications] 山中 邦俊: "線虫を用いたAAA蛋白質に起因する神経変性疾患モデル"蛋白質核酸酵素. (in press).

    • Related Report
      2003 Annual Research Report
  • [Publications] Akiyama, Y.: "Handbook of Proteolytic Enzymes,2nd edition"A.J.Barrett, N.D.Rawlings and J.F.Woessner (ed.) Academic Press(in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Krzywda, S: "Crystallization of the AAA domain of the ATP-dependent protease FtsH of Escherichia coli"Acta Crystallographica. D58. 1066-1067 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Krzywda, S: "The crystal structure of the AAA domain of the ATP-dependent protease FtsH of Escherichia coli at 1.5 Å resolution"Structure. 10. 1073-1083 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ogura, T: "Dissecting various ATP-dependent steps involved in proteasomal degradation"Molecular Cell. 11. 3-5 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 小椋 光: "AAAファミリーATPase"蛋白質核酸酵素. 47. 1182-1188 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2018-03-28  

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