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カルシウム/カルモデュリン依存性多機能性蛋白質燐酸化酵素を介する情報伝達機構

Research Project

Project/Area Number 08408034
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Neurochemistry/Neuropharmacology
Research InstitutionAsahikawa Medical College

Principal Investigator

藤沢 仁 (藤澤 仁)  旭川医大, 医学部, 教授 (10027039)

Co-Investigator(Kenkyū-buntansha) 木谷 隆子  旭川医科大学, 医学部, 教務職員 (70101417)
竹内 昌之  旭川医科大学, 医学部, 助手 (40226999)
石田 敦彦  旭川医科大学, 医学部, 助手 (90212886)
亀下 勇  旭川医科大学, 医学部, 助教授 (60127941)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥34,600,000 (Direct Cost: ¥34,600,000)
Fiscal Year 1998: ¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1997: ¥13,700,000 (Direct Cost: ¥13,700,000)
Fiscal Year 1996: ¥15,200,000 (Direct Cost: ¥15,200,000)
Keywordsカルシウムイオン / カルモデュリン / 脳 / 蛋白質燐酸化酵素 / シグナル伝達 / 酵素活性の調節機構 / 蛋白質脱燐酸化酵素 / CaMキナーゼカスケード / 蛋白質燐酸化反応 / cDNAクローニング
Research Abstract

1.カルシウム/カルモデュリン依存性蛋白質燐酸化酵素II(CaMキナーゼII)
(1)CaMキナーゼIIの自己燐酸化部位であるスレオニン-286を特異的に脱燐酸化する酵素が脳に存在することをゲル内アッセイ法で明らかにし、CaMキナーゼIIがスレオニン-286の燐酸化と脱燐酸化によって活性が調節されている可能性を示した。
(2)CaMキナーゼIIのスレオニン-286を特異的に脱燐酸化する新しい蛋白質脱燐酸化酵素をラット脳から純粋に精製し、その性質を明らかにした。
(3)CaMキナーゼIIの遺伝子から発現する蛋白質αKAPの細胞内分布を特異抗体を用いて明らかにした。
2.カルシウム/カルモデュリン/キナーゼ/キナーゼ・カスケード
(1)CaMキナーゼIVが上流のCaMキナーゼキナーゼによって燐酸化される部位を燐酸化ペプチドの解析によりN末端から196番目のスレオニンであることを明らかにした。
(2)CaMキナーゼキナーゼのアイソフォーム(CaMキナーゼキナーゼβ)をラットの小脳からクローニングして組み換え酵素を発現させた。さらにβアイソフォームに特異的な抗体を調整して脳内部位分布を調べ、αアイソフォームの分布と比較した。
(3)CaMキナーゼキナーゼαの組み換え酵素を用いて基質特異性を調べた。
(4)CaMキナーゼIVがCa^<2+>/カルモデュリンによってCaMキナーゼキナーゼ低感受性型酵素に転換されることを見出し、CaMキナーゼカスケードの新しい制御機能の可能性を示した。

Report

(2 results)
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] S.OKuno: "Purification and Characterization of Ca^<2+>/Calmodulin-Dependent Protein Kinase Kinase β from Rat Cerebellum" J.Biochem. 122(1). 155-160 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Kameshita: "Detection of Protein Phosphatase Activities in Sodium Dodecyl Sulfate-Polyacrylamide Gel Using Peptide Substrates" Anal.Biochem.245. 149-153 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Kitani: "Studies on the Site of Phosphorylation of Ca^<2+>/Calmodulin-Dependent Protein Kinase(CaM-Kinase)IV by CaM-Kinase Kinase" J.Biochem. 121. 804-810 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Kitani: "Molecular Cloning of Ca^<2+>/Calmodulin-Dependent Protein Kinase Kinase β" J.Biochem. 121(1). 243-250 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Okuno: "Studies on the Substrate Specificity of Ca^<2+>/Calmodulin-Dependent Protein Kinase Kinase α" J.Biochem. 122. 337-343 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Kameshita: "Detection of Calcium Binding Proteins by Two-Dimensional Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis" Anal.Biochem.249. 252-255 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] I.Kameshita: "A New Peptide Conjugate as a Highly Specific Substrate for MAP Kinase" J.Biochem. 122(1). 168-172 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Takeuchi: "Perinuclear Membrane Localization of α KAP,a Protein Produced from a Gene within the Gene of Calmodulin-Dependent Protein Kinase II α" J.Biochem. 122(3). 494-497 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Hayashi: "Calcium-and calmodulin-dependent phosphorylation of AMPA type glutamate receptor subunits by endogenous protein kinases in the post-synaptic density" Mol.Brain Res.46. 338-342 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.Okuno: "Regulation of Ca^<2+>/Calmodulin-Dependent Protein Kinase IV(CaM-Kinase IV)by Changing Its Susceptibility to Phosphorylation by CaM-Kinase Kinase" J.Biochem. 122(5). 897-900 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Ishida: "Assay of Protein Phosphatase Activities with Phosphopeptide-Magnetic Particle Conjugates" Anal.Biochem.254. 152-155 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Hirooka: "Reticalmin:A Novel Calcium/calmodulin-Dependent Protein Kinase IV-like Protein in Rat Retina" Vision Res.37(15). 2029-2033 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Ishida: "A Novel Phosphatase That Dephosporylates and Regulates Ca^<2+>/Calmodulin-dependent Protein Kinase" J.Biol.Chem.273(4). 1904-1910 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 奥野 幸子: "蛋白質・核酸・酵素" 共立出版, 6 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 奥野 幸子: "ブレインサイエンス最前線'98" 講談社, 11 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.Ishida: "Kinases and Phosphatases in Lymphocyte and Neuronal Signaling" Spring-Verlag Tokyo, 2 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Yoshida: "Differential Distribution of CaM Kinases and Induction of c-fos Expression by Flashing and Sustained Light in Rat Retinal Cells" Inv.Ophthalmol.Vis.Sci.37・1. 174-179 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.Ishida: "Evidence that autophosphorylation at Thr-286/Thr-287 is required for full activation of calmodulin-dependent protein kinase II" Biochim.Biophys.Acta. 1311. 211-217 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y.Nakamura: "Distribution of Ca^<2+>/calmodulin-dependent protein kinase kinase α in the rat central nervous system : an immunohistochemical study" Neuroscience Letters. 204・1.2. 61-64 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Watanabe: "Inactivation of calmodulin-dependent protein kinase IV by autophosphorylation of serine 332 within the putative calmodulin-binding domain" J.Biol.Chem.271・12. 6903-6910 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Okuno: "Evidence for the Existence of Ca^<2+>/Calmodulin-Dependent Protein Kinase IV Kinase Isoforms in Rat Brain" J.Biochem.119・6. 1176-1181 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] I.Kameshita: "Detection of Protein Kinase Activities toward Oligopeptides in Sodium Dodecyl Sulfate-Polyacrylamide Gel" Anal.Biochem.237・2. 198-203 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.Shimomura: "Calmodulin-dependent Protein kinase II Potentiates Transcriptional Activation through Activating Transcription Factor 1 but Not cAMP Response Element-binding Protein" J.Biol.Chem.271・30. 17957-17960 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] R.Sugai: "Molecular Cloning of a Novel Protein Containing the Association Domain of Calmodulin-Dependent Protein Kinase II" J.Biochem.120・4. 773-779 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Okuno: "Purification and Characterization of Ca^<2+>/Calmodulin-Dependent Protein Kinase Kinase β from Rat Cerebellum" J.Biochem.121. 155-160 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] I.Kameshita: "Detection of Protein Phosphatase Activities in SDS-Polyacrylamide Gel Using Peptide Substrates" Anal.Biochem.(in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Kitani: "Studies on the Site of Phosphorylation of Ca^<2+>/Calmodulin-Dependent Protein Kinase (CaM-Kinase) IV by CaM-Kinase Kinase" J.Biochem.(in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] 石田敦彦: "Clinical Neuroscience" 中外医学社, 4 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 奥野幸子: "生化学" 日本生化学会, 5 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 亀下勇: "生化学" 日本生化学会, 4 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Fujisawa: "ELSEVIER" Integrative and Molecular Approach to Brain Function, 4 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 奥野幸子: "蛋白質・核酸・酵素" 共立出版, 6 (1997)

    • Related Report
      1996 Annual Research Report

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

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