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Pyruvate Dehydrogenase Gene: Regulation of its Expression and Identification of Mutation in the PCR-amplified Exon Segments from the Patient with Fatal Deficiency

Research Project

Project/Area Number 03680174
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 代謝生物化学
Research InstitutionNagasaki University

Principal Investigator

KOIKE Kichiko  Nagasaki University School of Medicine, Associate Professor, 医学部, 助教授 (80039619)

Co-Investigator(Kenkyū-buntansha) GOTO Sinji  Same Institute and Department, Instructor, 医学部, 助手 (50186889)
URATA Yosisige  Same Institute and Department, Instructor, 医学部, 助手 (30185087)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1992: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1991: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsPyruvate dehydrogenase / alpha and beta subunits / Gene / Expression / Deficiency / PCR-amplification / Point mutation / ヒトピルビン酸脱水素酵素 / αーサブユニット遺伝子 / βーサブユニット遺伝子 / 変異(欠損症)遺伝子
Research Abstract

Human pyruvate dehydrogenase (PDH) is a mitochondrial enzyme encoded by nuclear genes and is a component enzyme of the PDH complex. PDH composed of two nonidentical subunits, alpha (41 kDa, PDHalpha) and beta (36 kDa, PDHbeta) and a tetrameric structure, alpha_2beta_2 (153 kDa). It utilyzes thiamin pyruphosphate (TPP) as coenzyme and the binding site of TPP is located on PDHalpha. Human PDHalpha and beta genes have been cloned using radiolabeled PDHalpha and beta cDNAs. The 5'-flanking regeons of two genes contain typical consensus promotor sequences. Primer extension analysis indicated that the transcriptional start sites of PDHalpha and beta genes are thymine and adenine located at 124 and 132 bases upstream from initiation codon in exon 1, respectively. The regulation and enhancer of expression of two genes have been examined by CAT assay., gel retardation assay and foot print method and are still underway. All exon segments of genomic DNAs of PHDalpha and beta isolated from the patient's liver with fatal PDH deficiency and from control leucocytes were amplified by PCR. Sequences of both PCR-amplified products were compared with normal PDHalpha and beta genes. Two single base-pair substitutions in two exons of the patient's PDHalpha gene, one G to T, in exon 5 and the other, T to c, in exon 6, were detected. These mutations generate a Phe-116 in PDHalpha in place of the normal Cys-116 and a Pro-162 in place of the Leu-162. The absence of both immunoreactive PDHalpha and beta proteins in the liver extract from the patient sugests that the point mutations in the PDHalpha gene lead to a decrease two subunit proteins.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] Yoshishige Urata: "Novel separation and amino acid sequence of α and β subunits of pig heart pyruvate dehydrogenase" Journal of Nutritional Science and Vitaminology. 37. 257-267 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Masahiko Koike: "Primary structures of pig pyruvate dehydrogenase α and β subunits" Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 184-191 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kichiko Koike: "Characterization of human pyruvate dehydrogenase α and β subunit genes" Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 192-199 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kichiko Koike: "Proteinase-catalysed activation of porcine heart muscle pyruvate dehydrogenase and identification of its cleavage site" Biochimica et Biophysica Acta. 1118. 223-230 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kichiko Koike: "Cloning and nucleotide sequence of the cDNA encoding human 2-oxoglutarate dehydrogenase" Proceedings of the National Academy of Sciences USA. 89. 1963-1967 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kichiko Koike: "Molecular genetic aspects of human pyruvate dehydro-genase and its defect" Proceeding of the 1st International Congress on Vitamins and Biofactors in Life Science in Kobe 1991. 397-400 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 小池 吉子: "チアミンピロリン酸酵素の分子生物学とその病態" ビタミン. 66. 635-641 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kichiko Koike: "Pyruvate dehydrogenase deficiency due to two single base-pair substitutions in exon 5 and 6 of the α subunit gene of the pyruvate dehydrogenase" Journal of Clinical Biochemistry and Nutrition. 13. 211-221 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Urata, Y., KOike, K., Goto, S., Koike, M.: "Novel separation and amino acid sequences of alpha and beta subunits of pig heart pyruvate dehydrogenase." J. Nutr. Sci. Vitaminol.37. 257-267 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, M., Urata, Y., Koike, K., Goto, S.: "Primary structures of pig pyruvate dehydrogenase alpha and beta subunits." Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 184-191 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K., Urata, Y., Koike, M.: "Characterization of human pyruvate dehydrogenase alpha and beta genes." Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 184-191 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K., Urata. Y., Goto, S.: "Proteinase-catalysed activation of porcine heart muscle pyruvate dehydrogenase and identification of its Cleavage site." Biochim. Biophys. Acta. 1118. 223-230 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K., Urata, Y., Goto, S.: "Cloning and sequence of the cDNA encoding human 2-oxoglutarate dehydrogenase." Proc. Natl. Acad. Sci. USA. 89. 1963-1967 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K., Urata, Y., Goto, S.: "Molecular genetic aspects of human pyruvate dehydrogenase and its defect." Congress on Vitamins and Biofactors in Life Science in Kobe. 1991. 397-400 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K.: "Molecular genetic aspects of human puruvate dehydrogenase." Vitamins (Japan). 66. 635-641 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Koike, K., Urata, Y., Goto, S., Matsuo, M.: "Pyruvate dehydrogenase deficiency due to two single base-pair substitutions in exon 5 and 6 of the alpha subunit gene of the pyruvate dehydrogenase." J. Clin. Biochem. Nutr.13. 211-221 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yoshishige Urata: "Novel separation and amino acid sequence of α and β subunits of pig heart pyruvate dehydrogenase" Journal of Nutritional Science and Vitaminology. 37. 257-267 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] Masahiko Koike: "Primary structures of pig pyruvate dehydrogenase α and β subunits" Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 184-191 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kichiko Koike: "Characterization of human pyruvate dehydrogenase α and β subunit genes" Biochemistry and Physiology of Thiamin Diphosphate Enzymes. 192-199 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kichiko Koike: "Proteinase-catalysed activation of porcine heart muscle pyruvate dehydrogenase and identification of its cleavage site" Biochimica et Biophysica Acta. 1118. 223-230 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kichiko Koike: "Cloning and nucleotide sequence of the cDNA encoding human 2-oxoglutarate dehydrogenase" Proceedings of the National Academy of Sciences USA. 89. 1963-1967 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kichiko Koike: "Molecular genetic aspects of human pyruvate dehydrogenase and its defect" Proceeding of the 1st International Congress on Vitamins and Biofactors in Life Science in Kobe 1991. 397-400 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 小池 吉子: "チアミンピロリン酸酵素の分子生物学とその病態" ビタミン. 66. 635-641 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kichiko Koike: "Pyruvate dehydrogenase deficiency due to two single base-pair substitutions in exon 5 and 6 of the α subunit gene of the pyruvate dehydrogenase" Journal of Clinical Biochemistry and Nutrition. 13. 211-221 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Urata: "Novel separation and amino acid sequence of α and β subunits of pig heart pyruvate dehydrogenase" Journal of Nutritional Science and Vitaminology. 37. 257-267 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Koike: "Proteaseーcatalyzed activation of porcine heart muscle pyruvate dehydrogenase and identification of its cleavage site" Biochemica Biophysica Acta. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Koike: "Cloning and nucleotide sequence of the cDNA encoding human 2ーoxoglutarate dehydrogenase" Proceeding of National Academy of Sciences,United States of America. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Koike: "Pyruvate dehydrogenase deficiency:Identification and characterization of the subunit gene mutation" Pediatric Research. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Koike: "Biochemistry and Physiology of thiamin diphosphate enzymes" VCH Publishers,Weinheim,Federal Republic of Germany, 453 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Koike: "Proceeding of the first international congress of vitamins and biofactors in life sciences" 日本学会事務センタ-,大阪, (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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