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Effects of DNA repair on homologous and non-homologous recombination

Research Project

Project/Area Number 04640592
Research Category

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

Allocation TypeSingle-year Grants
Research Field 遺伝学
Research InstitutionSaitama University

Principal Investigator

INOUE Hirokazu  Saitama University, Faculty of Science, Associate Professor, 理学部, 助教授 (60114203)

Co-Investigator(Kenkyū-buntansha) ISHII Chizu  Saitama University, Faculty of Science, Assistant Professor, 理学部, 助手 (00114215)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordshomologous recombination / Neurospora crassa / non-homologous recombination / cloning / mei-3 / RAD51 / DNA repair / recombinational repair / 相同的組み換え / 非相同的組み換え / DNA修復欠損株
Research Abstract

About 40 different Neurospora DNA repair mutants were characterized genetically and their sensitivities to mutagens were extensively tested. From those results, we isolated 5 to 6 as candidates of recombinational repair-deficient mutants and tested their abilities of integration of a plasmid pMTR to genome DNA.Mutants, mei-3, mei-2, uvs-6, mus-25 showed very low homologous recombination frequencies. We tried to clone those genes using sib selection method. Cloned mei-3 showed that it has high similarity to E.coli recA and S.cerevisiae RAd51. Gene mus-25 was a homolog of S.cerevisiae RAD54. They are member of recombinational repair in yeast. Therefore, it seems that this group including mei-3 and mus-25, functions in homologous recombination system in Neurospora crassa.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] H.Tomita: "The neurospora uvs-2 gene encodes a protein which has homology to yeast Rad18,with unique zinc finger motifs" Mol Gen Genet. 238. 225-233 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Ishii: "Mutagenesis depistatic grouping of the Neurospora meiotic mutants,mei-2 and mei-3,which are sensitive to mutagens" Mutation Res. 315. 249-259 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] S.Hatakeyama: "Identification and expression of the Neurospora crassa mei-3 gene which encodes a protein homologous to Rad51 of Saccharomvces cerevisi" Mol Gen Genet. 249. 439-446 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Watanabe: "Genetic and molecular characterization of Neurospora crassa mus-23" Mol Gen Genet. 256. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Watanabe: "Genetic and molecular characterization of Neurospora crassa mus-23" Mol Gen Genet. 256. (1997)436-445

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] H.Tomita, T.Soshi and H.Inoue: "The Neurospora uvs-2 gene encodes a protein which has homology to yeast Rad18, with unique zinc finger motifs" Mol Gen Genet. 238. 225-233 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] C.Ishii and H.Inoue: "Mutagenesis d epistatic grouping of the Neurospora meiotic mutants, mei-2 and mei-3, which are sensitive to mutagens" Mutation Res. 315. 249-259 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] S.Hatakeyama, C.Ishii and H.Inoue: "Identification and expression of the Neurospora crassa mei-3 gene which encodes a protein homologous to Rad51 of Saccharomyces cerevisiae" Mol Gen Genet. 249. 439-446 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Watanabe, Y.Sakuraba and H.Inoue: "Genetic and molecular characterization of Neurospora crassa mus-23 : a gene involved in recombinational repair" Mol Gen Genet. 256. 436-445 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary

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Published: 1992-04-01   Modified: 2016-04-21  

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