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Physiological significance of protein phosphatases on cellular signal transduction

Research Project

Project/Area Number 08308035
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional biochemistry
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

TAKEDA Masao  Hiroshima University, Faculty of Medicine, Professor, 医学部, 教授 (40030853)

Co-Investigator(Kenkyū-buntansha) YAKURA Hidetaka  Tokyo Metropolitan Institute for Neuroscience, Department of Microbiology and Im, 微生物学・免疫学研究部門, 参事 (60166486)
KASUGA Masato  Kobe University, School of Medicine, Professor, 医学部, 教授 (50161047)
MIYAMOTO Eishichi  Kumamoto University, School of Medicine, Professor, 医学部, 教授 (50109659)
TAMURA Shinri  Tohoku University, Institute of Development, A ging and Cancer, Professor, 加齢医学研究所, 教授 (20124604)
KIKUCHI Kunimi  Hokaido University, Reseach Section of Biochemistry Institute of Immunological S, 免疫科学研究所, 教授 (20006117)
日野田 裕治  札幌医科大学, 助教授 (10165128)
久野 高義  神戸大学, 医学部, 教授 (50144564)
渡邊 利雄  東北大学, 加齢医学研究所, 助教授 (60201208)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥18,100,000 (Direct Cost: ¥18,100,000)
Fiscal Year 1998: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 1997: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1996: ¥8,400,000 (Direct Cost: ¥8,400,000)
KeywordsSignal transduction / Protein phosphatase / Serine / threonine protein phosphatase / Tyrosine protein phosphatase / Tautomycin / SHPS-1 / SHP-2 / B cell antigen receptor / ノジュラリン / CD45 / 長期増強 / アルツハイマー病 / オカダ酸
Research Abstract

(Takeda) Human erythrocyte PP2A (CAB") was phosphorylated in vitro by A-kinase at Ser-60, -75 and -573 of B" without dissociation of B" from CA, and was stimulated in the activity toward P-histones ; (Kikuchi) Activities and amounts of nuclear type I protein phosphatase (PP1) were elevated in human HepG2 and rat AHI3 hepatoma cells compared with primary cultured hepatocytes. The nuclear PP1 activities were more elevated at the (Gl/S transition in hepatoma cells, the extent of the elevation being much less in hepatoma cells than in hepatocytes ; (Kuno) Disruption of the PP2B gene in fission yeast resulted in a drastic chloride ion-sensitive growth defect. High copy of two novel genes pmpl+ and pekl+ suppress this defect. pmpl+ encodes a MAP kinase phosphatase which negatively regulates Pmkl, the third MAP kinase in fission yeast pekl+ encodes a novel MAPKK member, which phosphorylates and activates the Pmkl MAPK ; (Tamura) Protein phosphatase 2Calpha (PP2Calpha) or PP2Cbeta-l expressed … More in COS7 cells suppressed anisomycin- and NaCI-enhanced phosphorylations of p38 coexpressed in the cells. PP2Calpha or PP2Cbeta-l expression also suppressed both basal and stress-enhanced phosphorylations of MKK3b, MKK6b and MKK4 but not those of MKKla. A dominant negative form of PP2Cbeta-l enhanced farther the NaCl-stimulated phosphorylations of MKK3b, MKK4 and MKK6b. These results suggest that PP2C inhibits selectively the SAPK pathways through suppression of MKK3b, MKK4, and MKK6b activities in mammalian cells ; (Miyamoto) l)Protein phosphatases which are responsible for the phosphorylation sites by proline-directed protein kinases were investigated. In this connection, protein phosphatases for phosphorylated tau in neurofibrillary tangles Alzheimer's brain was studied. 2) Decreases in protein phosphatase activities during induction of long-term potentiation in hippocampus was studied ; (Fujiki, ) Inhibitors of PP-l and PP-2A, okadaic acid and microcystin are potent tumor promoters of skin, glandular stomach and liver. However, tautomycin, an inhibitor of PP-1 and PP-2A, did not show any tumor promoting activity in mouse skin and rat glandular stomach. Okadaic acid and microcystin induced tumor necrosis factor-alpha (TNF-alpha) gene expression in their target organs, but tautomycin did not. Effects of tautomycin on JNK activation snd cell cycle regulation are different from those of okadaic acid ; (Kasuga) SHP substrate-l (SHIPS-1) with Ig-like domains in its extracellular region and four YXX(L/ V/I) motifs in its cytoplasmic region was identified. Various mitogens induced tyrosine phosphorylation of SHPS-i and its subsequent association with SAP-2/SHP-2. Thus, SHPS-l may be a direct substrate for both tyrosine kinases and SAP-2/SAP-2 and also be a specific docking protein for SH2 domain-containing PTPases ; (Hinoda) Tyrosine phosphorylation of SHP-2 was involved in the signal transduction pathways by IL-2 stimulation. Since this SHP-2 activation is irrelevant to Less

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] Hirofumi Usui: "Activation of protein phosphatase 2A by cAMP-dependent protein kinase-catalyzed phosphorylation of the 74-kDa B^n (δ) regulatory subunit in vitro and identification of the phosphorylation sites" FEBS Letters. 430. 312-316 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahiro Adachi: "The B cell surface protein CD72 recuits the tyrosine phosphatase SHP-1 upon tyrosine phosphorylation" Journal of Immunology. 160. 4662-4665 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masahito Hanada: "Selective suppression of stress activated protein kinase pathway by protein phosphatase 2C in mammalian cells" FEBS Letters. 437. 172-176 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masahiro Tsuda: "Integrin-mediated tyrosine phosphorylation of SHPS-1 and its association with SHP-2:Roles of FAK and SRC family kinases" Journal of Biological Chemistry. 273・21. 13223-13229 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masao Ohmitsu: "Phosphorylation of myristoylated alanine-rich protein kinase C substrate by mitogen-activated protein kinase in cultured rat hippocampal neurons following stimulation of glutamate receptors" Journal of Biological Chemistry. 274. 408-417 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nobuhiro Tanuma: "Distinct promoters control transmembrane and cytosolic protein tyrosine phosphatase ε expression during macrophage differentiation" Europian Journal of Biochemistry. 259. 46-54 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nobuyuki Yanagihara: "Advances in Pharmacology,vol.42" Academic Press,San Diego, 1084 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takayasu Kobayashi: "Methods in Molecular Biology,vol.93" Humana Press,Totowa,New Jersey, 316 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hirofumi Usui: "Activation of protein phosphatase 2A by cAMP-dependent protein kinase-catalyzed phosphorylation of the 74-kDa B"(delta)regulatory subunit in vitro and identification of the phosphorylation sites" FEBS Letters. 430. 312-316 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahiro Adachi: "The B cell surface protein CD72 recuits the tyrosine phosphatase SHP-1 upon tyrosine phosphorylation" Journal of Immunology. 160. 4662-4665 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masahito Hanada: "Selective suppression of stress activated protein kinase pathway by protein phosphatase 2C in mammalian cells" FEBS Letters. 437. 172-176 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masahiro Tsuda: "Integrin-mediated tyrosine phosphorylation of SHPS-1 and its association with SHP-2 : Roles of FAK and SRC family kinases" Journal of Biological Chemistry. 273・21. 13223-13229 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Masao Ohmitsu: "Phosphorylation of myristoylated alanine-rich protein kinase C substrate by mitogen-activated protein kinase in cultured rat hippocampal neurons following stimulation of glutamate receptors" Journal of Biological Chemistry. 274. 408-417 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nobuhiro Tanuma: "Distinct promoters control transmembrane and cytosolic protein tyrosine phosphatase epsilon expression during macrophage differentiation" Europian Journal of Biochemistry. 259. 46-54 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nobuyuki Yanagihara: Advances in Pharmacology, Vol.42. Academic Press, San Diego, 1084 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takayasu Kobayashi: Methods in Molecular Biology, vol.93. Humana Press, Totowa, New Jersey, 316 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hirofumi Usui: "Activation of protein phosphatase 2A by cAMP-dependent protein kinase-catalyzed phosphorylation of the 74-kDa B" (δ) regulatory subunit in vitro and identification of the phosphorylation sites" FEBS Letters. 430. 312-316 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takahiro Adachi: "The B cell surface protein CD72 recuits the tyrosine phosphatase SHP-1 upon tyrosine phosphorylation" Journal of Immunology. 160. 4662-4665 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Masahito Hanada: "Selective suppression of stress activated protein kinase pathway by protein phosphatase 2C in mammalian cells" FEBS Letters. 437. 172-176 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Masahiro Tsuda: "Integrin-mediated tyrosine phosphorylation of SHPS-1 and its association with SHP-2 : Roles of FAK and SRC family kinases" Journal of Biological Chemistry. 273・21. 13223-13229 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Masao Ohmitsu: "Phosphorylation of myristoylated alanine-rich protein kinase C substrate by mitogen-activated protein kinase in cultured rat hippocampal neurons following stimulation of glutamate receptors" Journal of Biological Chemistry. 274. 408-417 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Nobuhiro Tanuma: "Distinct promoters control transmembrane and cytosolic protein tyrosine phosphatase ε expression during macrophage differentiation" Europian Journal of Biochemistry. 259. 46-54 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Nobuyuki Yanagihara: "Advances in Pharmacology,vol.42" Academic Press,San Diego, 1084 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takayasu Kobayashi: "Methods in Molecular Biology,vol.93" Humana Press,Totowa,New Jersey, 316 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Osamu Tanabe: "Molecular heterogeneity of the cDNA encoding a 74-kDa regulatory subunit (B″orδ) of human protein phosphatase 2A." FEBS Letters. 408. 52-56 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Reiko Sugiura: "pmp1^+gene,a suppressor of calcineurin deficiency,encodes a novel MAP kinase phophatase in fission yeast." EMBO Journal. 17. 140-148 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Eisaburo Sueoka: "Expression of the tumor necrosis factor α gene and early response genes by nodularin,a liver tumor promoter,in primary cultured rat hepatocytes." Journal of Cancer Research and Clinical Oncology. 123. 413-419 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takuji Yamao: "Mouse and human SHPS-1 : Molecular cloning of cDNAs and chromosomal localization." Biochemical and Biophysical Research Communications. 231. 61-67 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Masaaki Adachi: "Interleukin-2 induces tyrosine phoshorylation of SHP-2 through IL-2 receptor b chain." Oncogene. 14. 1629-1633 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yousuke Mukouyama: "Induction of protein tyrosine phosphatase ε transcripts during NGF-induced neuronal differentiation of PC12D cells and during the development of cerebellum." Molecular Brain Research. 50. 230-236 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hidetaka Yakura: "Kinases and phosphatases in lymphocyte and neuronal signaling" Springer-Verlag,Tokyo, 368 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Osamu Tanabe: "Molecular cloning of a 74-kDa regulatory subunit (B" or δ) of human protein phosphatase 2A." FEBS Letters. 379. 107-111 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Ken Nomoto: "Molecular cloning and analysis of the 5'-flanking region of the rat PP1α gene." Biochimica Biophysica Acta. 1309. 221-225 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Shiro Ikegami: "A facilitatory effect on the inductionof long-term potentiation in vivo by chronic administration of antisense oligodeoxynucleotides against catalytic subunits of calcineurin." Molecular Brain Research. 41(1-2). 183-191 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Shunsuke Kato: "Differentiation-dependent enhanced espression of protein phosphatase 2Cβ in germ cells of mouse seminiferous tubules." FEBS Letters. 396. 293-297 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yohsuke Fujioka: "A novel membrane glycoprotein, SHPS-1, that binds the SH2 domain-containing protein tyrosine phosphatase SHP-2 in response to mitogens and cell adhesion." Molecular and Cellular Biology. 16(12). 6887-6899 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Tsutomu Kume: "Expression of the protein throsine phosphatase β2 gene in mouse erythroleukemia cells induces terminal erythroid differntiation." The Journal of Biological Chemistry. 271. 30916-30921 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Hirota Fujiki: "Toxic Microcystis" CRC Press, 203-232 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takayasu Kobayashi: "Methods in Molecular Biology" Human Press (印刷中),

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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