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Purification of chromatin proteins concerning gene expression in animals and studies on their functions

Research Project

Project/Area Number 62470117
Research Category

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

Allocation TypeSingle-year Grants
Research Field 応用生物化学・栄養化学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

MIZUNO Shigeki  Professor, Faculty of Agriculture, Tohoku University, 農学部, 教授 (90112903)

Co-Investigator(Kenkyū-buntansha) ISHIHARA Hiroaki  Assistant, Faculty of Agriculture, Tohoku University, 農学部, 助手 (50005633)
吉田 充輝  東北大学, 農学部, 助教授 (20005648)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥7,000,000 (Direct Cost: ¥7,000,000)
Fiscal Year 1988: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1987: ¥5,000,000 (Direct Cost: ¥5,000,000)
Keywordsfibroin H- and L-chain genes / sequence-specific DNA binding protein / middle and posterior silk glands of silkworm / bent-repetitive DNA / W chromosome / W-protein / 反復塩基配列 / W染色体 / W-protein / クロマチン / フィブロインL鎖、H鎖遺伝子 / カイコ / 中部、後部絹系腺 / ニワトリ / 湾曲反復DNA / 非ヒストンタンパク質 / Wーprotein / DNaseIフットプリント法 / ゲルシフト法 / 遺伝子の同調的発現制御 / 反復DNA配列
Research Abstract

1. Protein factors binding to the 5'-upstream region of the fibroin light(L-) chain gene: Sequence analysis of the cosmid clone containing the fibroin L-chain gene revealed that three sequences in the 5'-upstream region, i.e, -415- -398, -306- -277, -250- -226, were highly homologous to the sequences in the -275- -155 region of the fibroin H-chain gene. It was found that protein factors which bound to the all three upstream regions were present in the 0.5M NaCl extract of the posterior silk gland nuclei of the silkworm, Bombyx mori. Particularly, proteins binding to the 64bp sequence containing the -306- -277 sequence were shown to consist of posterior silk gland-specific factor(s) and posterior and middle silk gland-common factor(s).
2. Purification and properties of W-protein: W-protein, purified from the 0.35M NaCl extract of the chicken liver nuclei, has a monomeric molecular weight of 72k but forms a multimeric form consisting of about 30 molecules, under non-denaturing conditions. W-protein binds with high affinity to the chicken W chromosome-specific, bent repetitive DNA(XhoI family). It was suggested that the XhoI family sequence wraps around the multimer of W-protein making multiple contacts through the A-T-rich minor grooves..participation of W-protein in the formation of higher-order structure of chromatin is suggested.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Fusaho Takei: J.Cell Biology. 105. 175-180 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hiroshi Kodama: Chromosoma. 96. 18-25 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 水野重樹: 生化学. 59. 1308-1320 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S.Mizuno: Gunma Symposia on Endocrinology. 24. 27-40 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 原田昌彦: RADIOISOTOPES. 37. 243-253 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Masahiko Harata.: J.Biological Chemistry. 263. 13952-13961 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 大場義樹: "クロマチン実験法" 学会出版センター, 365 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Fusaho Takei: "Further evidence for importance of the subunit combination of silk fibroin in its efficient secretion from the posterior silk gland cells" J. Cell Biology. 105. 175-180 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hiroshi Kodama: "Nucleotide sequences and unusual electrophoretic behavior of the W chromosome-specific repeating DNA units of the domestic.fowl, Gallus gallus domesticus" Chromosoma. 96. 18-25 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] S. Mizuno: "Contrastive chromatin structure of the fibroin H-chain gene during the molting cycle of the silkworm, Bombyx mori" Gunma Symposia on Endocrinology. 24. 27-40 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Masahiko Harata: "Purification and characterization of W-protein. A DNA-binding protein showing high affinity for the W chromosome-specific repetitive DNA sequences of chicken" J. Biological Chemistry. 263. 13952-13961 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 原田昌彦: RADIOISOTOPES. 37. 243-253 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Masahiko,Harata: J.Bilogical Chemistry. 263. 13952-13961 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 大場義樹: "クロマチン実験法" 学会出版センター, 1-365 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 水野重樹: 生化学. 59. 1308-1320 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Hiroshi.Kodama: Chromosoma(Berl). 96. 18-25 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Masahiko.Harata: J.Biol.Chem. (1988)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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