• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Mechanistic role of bent DNA in transcription from eukaryotic promoters

Research Project

Project/Area Number 09680681
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Molecular biology
Research InstitutionKONAN UNIVERSITY

Principal Investigator

OHYAMA Takashi  Konan University Department of Biology (Faculty of Science) Associate Professor, 理学部, 助教授 (60268513)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywordsbent DNA / promoter / transcriptional regulation / chromatin / nucleosome / eukaryotic transcription / 転写調節 / DNA高次構造
Research Abstract

Unusual curved DNA structures are sometimes reported to reside within genetic regions that regulate prokaryotic and eukaryotic transcription. Extensive data suggesting a role in prokaryotic transcription for the structure have accumulated over the last few years. However, little has been revealed as to the role of DNA curvature in eukaryotic transcription.Recent studies indicated that DNA curvatures can directly activate eukaryotic transcription. In order to elucidate that mechanism, using herpes simplex thymidine kinase (tk) promoter or human adenovirus type 2 (Ad2) E1A promoter, we investigated the effects of synthetic plane and space curves on the promoter activities. Double-stranded oligonucleotides having various three-dimensional architectures were designed, synthesized and ligated to each promoter. Furthermore, rotational orientation of each synthetic DNA segment relative to each promoter was altered by deleting several nucleotides from the region between them. Luciferase assay showed that a bent DNA having left-handed superhelical writhe could remarkably activate tk promoter. In the process, rotational orientation of the writhe relative to the promoter and the distance between them played a very important role. Results of in vitro and in vivo DNase I footprinting assays indicated that introduction of synthetic DNA curvatures into upstream region of the tk promoter influenced nucleosome positioning on the promoter. The left-handed superhelical writhe directed positions of nucleosomes to prevent inappropriate inhibitory histone-DNA contacts from occurring over the TATA box. It is strongly indicated that in eukaryotic gene transcription, a role of bent DNA structures is to modulate the organization of local chromatin structure.

Report

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

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Takashi Ohyama: "Sense of superhelical writhe of a bent DNA influences eukaryotic promoter function" The FASEB Journal. vol.11. A1374 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Ohyama: "Bent DNA has a shape-dependent effect on eukaryotic transcription" Proceedings of International Symposium on Gene Function to Cell Differentiation. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiromi Tsujibayashi: "Characterization of DNA fragments thet show anomalously rapid migration in mondenaturing polyacrylamide gels" Nucleic Acids Symposium Series. No.37. 279-280 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Ohyama: "Activation of eukaryotic gene transcription by bent DNA" Proceedings of 3α EMBL Meeting on Transcription. 185 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Miho Amano: "Effect of upstream superhelical writhe on the function of eukaryotic promoters" Nucleic Acids Symposium Series. No.39. 255-256 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Shigenobu Tone: "A method for quantification of gene expression using in vitro transcription and Northern hybridization" Nucleic Acids Symposium Series. No.39. 81-82 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Ohyama: "Suppression of electrophoretic anomaly of bent DNA segments by the Structural property thet causes rapid migration" Nucleic Acids Research. vol.26. 4811-4817 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 大山 隆: "ベントDNA構造を介した転写調節のメカニズム" 生化学. vol.70. 1339-1344 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yukiko Yamazaki: "In vivo gene transfer to mouse spermatogenic cells by DNA injection into seminiferous tubules and subsequent electroporation" Biology of Reproduction. vol.59. 1439-1444 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Munehiko Asayama: "An intrinsic DNA curvature found in the cyanobacterium Microcystis aeruginosa K-81 affects the promoter activity of rpo DI encoding a principal sigma factor" Journal of Biochemistry. in press. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohyama, T., Nishikawa, J.and Amano, M.: "Sense of superhelical writhe of a bent DNA influences eukaryotic promoter function." FASEB J.11. A1374 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohyama, T., Nishikawa, J.and Amano, M.: "Bent DNA has a shape-dependent effect on eukaryotic transcription." Proceedings of International Symposium on Gene Functions to Cell Differentiation. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tsujibayashi, H., Tagashira, H.and Ohyama, T.: "Characterization of DNA fragments that show anomalously rapid migration in nondenaturing polyacrylamide gels." Nucl.Acids.Symp.Ser. 37. 279-280 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohyama, T., Amano, M.and Nishikawa, J.: "Activation of eukaryotic gene transcription by bent DNA." Proceedings of 3d EMBL Meeting on Transcription. 185. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Amano, M., Nishikawa, J.and Ohyama, T: "Effect of upstream superhelical writhe on the function of eukaryotic promoters." Nucl.Acids Symp.Ser.39. 255-256 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tone, S., Ohyama, T.and Minatogawa, Y: "A method for quantification of gene expression using in vitro transcription and Northem hybridization." Nucl.Acids Symp.Ser. 39. 81-82 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohyama, T., Tsujibayashi, H., Tagashira, H., Inano, K., Ueda, T., Hirota, Y.and Hashimoto, K.: "Suppression of electrophoretic anomaly of bent DNA segments by the structural property that causes rapid migration." Nucl.Acids Res.26. 4811-4817 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohyama, T: "Mechanism of transcriptional regulation by bent DNA structures." Seikagaku. 70. 1339-1344 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yamazaki, Y., Fujimoto, H., Ando, H., Ohyama, T., Hirota, Y.and Noce, T.: "In vivo gene transfer to mouse spermatogenic cells by DNA injection into seminiferous tubules and subsequent electroporation." Biol.Reprod.59. 1439-1444 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Asayama, M., Hayasaka, Y., Kabasawa, M., Shirai, M.and Ohyama, T.: "An intrinsic DNA curvature found in the cyanobacterium Microcystis aeruginosa K-81 affects the promoter activity of rpoD1 encoding a principal sigma factor." J.Biochem.(in press.). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takashi Ohyama: "Activation of eukaryotic gene transcription by bent DNA" Proceedings of 3d EMBL Meeting on Transcription. 185 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Miho Amano: "Effect of upstream superhelical writhe on the function of eukaryotic promoters" Nucleic Acids Symposium Series. No.39. 255-256 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Shigenobu Tone: "A method for guantification of gene expression using in vitro transcription and Northern hybridization" Nucleic Acids Symposium Series. No.39. 81-82 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Takashi Ohyama: "Suppression of electrophoretic anomaly of bent DNA segments by the structural property that causes rapid migration" Nucleic Acids Research. vol.26. 4811-4817 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 大山 隆: "ベントDNA構造を介した転写調節のメカニズム" 生化学. vol.70. 1339-1344 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yukiko Yamazaki: "In vivo gene transfer to mouse spermatogenic cells by DNA injection into seminiferous tubules and subseguent electroporation" Biology of Reproduction. vol.59. 1439-1444 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Munehiko Asayama: "Journal of Biochemistry" An intrinsic DNA curvature found in the cyanobacterium Microcystis aeruginosa K-81 affects the promoter activity of rpo D1 encoding a principal sigma factor(in press), (1999)

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi