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Differential regulation of master regulatory switch PchABC for the type 3 secretion system in Escherichia coli.

Research Project

Project/Area Number 21790434
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Bacteriology (including Mycology)
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

IYODA Sunao  National Institute of Infectious Diseases, 細菌第一部, 主任研究官 (70300928)

Research Collaborator 本田 尚子  東京大学, 大学院・医学系研究科, 博士後期課程大学院生
Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords腸管出血性大腸菌 / 発現制御 / LEE / 3型蛋白質輸送装置
Research Abstract

The transcription of LEE genes in EHEC is under the positive control of PchABC, which are encoded by the genes dispersed on the chromosome. We identified transcriptional start sites and promoter sequences of each gene. Genetic analysis using transposon mutagenesis identified that a LysR-type regulator, LrhA positively controls LEE gene expression through the transcriptional up-regulation of pchA and pchB.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (19 results)

All 2010 2009

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (9 results)

  • [Journal Article] New system for multilocus variable-number tandem-repeat analysis of the enterohemorrhagic Escherichia coli strains belonging to three major serogroups : 0157, 026, and 0111.2010

    • Author(s)
      Izumiya H, Pei Y, Terajima J, Ohnishi M, Hayashi T, Iyoda S, Watanabe H
    • Journal Title

      Microbiol Immunol. 54

      Pages: 569-577

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Complete genome sequence of the wild-type commensal Escherichia coli strain SE15, belonging to phylogenetic group B2.2010

    • Author(s)
      Toh H, Oshima K, Toyoda A, Ogura Y, Ooka T, Sasamoto H, Park SH, Iyoda S, Kurokawa K, Morita H, Itoh K, Taylor TD, Hayashi T, Hattori M
    • Journal Title

      J Bacteriol. 192

      Pages: 1165-1166

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] New system for multilocus variable-number tandem-repeat analysis of the enterohemorrhagic Escherichia coil strains belonging to three major serogroups : O157, O26, and O111.2010

    • Author(s)
      Izumiya H, Pei Y, Terajima J, Ohnishi M, Hayashi T, Iyoda S, Watanabe H.
    • Journal Title

      Microbiol Immunol.

      Volume: 54 Pages: 569-577

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Complete genome sequence of the wild-type commensal Escherichia colistrain SE15, belonging to phylogenetic group B2.2010

    • Author(s)
      Toh H, Oshima K, Toyoda A, Ogura Y, Ooka T, Sasamoto H, Park SH, Iyoda S, Kurokawa K, Morita H, Itoh K, Taylor TD, Hayashi T, Hattori M.
    • Journal Title

      J.Bacteriol. 192

      Pages: 1165-1166

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LrhA positively controls the expression of the locus of enterocyte effacement genes in enterohemorrhagic Escherichia coli by differential regulation of their master regulators PchA and PchB.2009

    • Author(s)
      Honda N, Iyoda S, Yamamoto S,Terajima J, Watanabe H
    • Journal Title

      Mol. Microbiol. 74

      Pages: 1393-1411

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Development of a multiplex PCR-based rapid typing method for enterohemorrhagic Escherichia coli 0157 strains.2009

    • Author(s)
      Ooka T, Terajima J, Kusumoto M, Iguchi A, Kurokawa K, Ogura Y, Asadulghani M, Nakayama K, Murase K, Ohnishi M, Iyoda S, Watanabe H, Hayashi T
    • Journal Title

      J.Clin. Microbiol. 47

      Pages: 2888-2894

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] The hemolytic and cytolytic activities of Serratia marcescens phospholipase A (PhlA) depend on lysophospholipid production by PhlA.2009

    • Author(s)
      Shimuta K, Ohnishi M, Iyoda S, Gotoh N, Koizumi N, Watanabe H
    • Journal Title

      BMC Microbiol.on-line jouornal 9

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] LrhA positively controls the expression of the locus of enterocyte effacement genea in enterohemorrhagic Escherichia coli by differential regulation of their master regulators PchA and PchB.2009

    • Author(s)
      Honda N, Iyoda S, Yamamoto S, Terajima J, Watanabe H.
    • Journal Title

      Mol.Microbiol. 74

      Pages: 1393-1411

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a multiplex PCR-based rapid typing method for enterohemorrhagic Escherichia coli O157 strains.2009

    • Author(s)
      Ooka T, Terajima J, Kusumoto M, Iguchi A, Kurokawa K, Ogura Y, Asadulghani M, Nakayama K, Murase K, Ohnishi M, Iyoda S, Watanabe H, Hayashi T.
    • Journal Title

      J.Clin.Microbiol. 47

      Pages: 2888-2894

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The hemolytic and cytolytic activities of Serratia marcescens phospholipase A (PhlA) depend on lysophospholipid production by PhlA.2009

    • Author(s)
      Shimuta K, Ohnishi M, Iyoda S, Gotoh N, Koizumi N, Watanabe H.
    • Journal Title

      BMC Microbiol. 9

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 腸管出血性大腸菌におけるLEE遺伝子群のマスターレギュレーターPchのグローバル発現制御機構の解析2010

    • Author(s)
      伊豫田淳,寺嶋淳,大西真
    • Organizer
      第93回日本細菌学会関東支部総会
    • Place of Presentation
      東京
    • Year and Date
      2010-10-21
    • Related Report
      2010 Final Research Report
  • [Presentation] 腸管出血性大腸菌におけるLEE遺伝子群のマスターレギュレーターPchのグローバル発現制御機構の解析2010

    • Author(s)
      伊豫田淳, 寺嶋淳, 大西真
    • Organizer
      第93回 日本細菌学会関東支部総会
    • Place of Presentation
      京王プラザホテル
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] LEE遺伝子群のマスターレギュレーターPchの分別発現制御機構の解析2010

    • Author(s)
      伊豫田淳、本田尚子、寺嶋淳、大西真
    • Organizer
      第14回腸管出血性大腸菌感染症シンポジウム
    • Place of Presentation
      宮崎
    • Year and Date
      2010-07-23
    • Related Report
      2010 Final Research Report
  • [Presentation] 腸管出血性大腸菌ワーキンググループVirulence traits of EHEC 0157:H7 clade 8, a possible high virulent lineage.2010

    • Author(s)
      伊豫田淳、寺嶋淳、泉谷秀昌、大西真、渡邉治雄
    • Organizer
      第83回日本細菌学会総会
    • Place of Presentation
      横浜
    • Year and Date
      2010-03-29
    • Related Report
      2010 Final Research Report
  • [Presentation] Virulence traits of EHEC O157:H7 clade 8, a possible high virulent lineage.2010

    • Author(s)
      伊豫田淳、寺嶋淳、泉谷秀昌、大西真、渡邉治雄、腸管出血性大腸菌ワーキンググループ
    • Organizer
      第83回日本細菌学会総会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2010-03-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] クレード解析によるDNA型別から明らかとなった高病原性と推定される腸管出血性大腸菌0157:H7株の解析2009

    • Author(s)
      伊豫田淳、寺嶋淳、泉谷秀昌、大西真、渡邉治雄
    • Organizer
      第92回日本細菌学会関東支部総会
    • Place of Presentation
      東京
    • Year and Date
      2009-11-05
    • Related Report
      2010 Final Research Report
  • [Presentation] クレード解析によるDNA型別から明らかとなった高病原性と推定される腸管出血性大腸菌O157:H7株の解析2009

    • Author(s)
      伊豫田淳、寺嶋淳、泉谷秀昌、大西真、渡邉治雄
    • Organizer
      第92回日本細菌学会関東支部総会
    • Place of Presentation
      東京医科歯科大学
    • Year and Date
      2009-11-05
    • Related Report
      2009 Annual Research Report
  • [Presentation] クレード解析による腸管出血性大腸菌のDNA型別2009

    • Author(s)
      伊豫田淳、寺嶋淳、泉谷秀昌、大西真、渡邉治雄
    • Organizer
      第13回腸管出血性大腸菌感染症シンポジウム
    • Place of Presentation
      大阪
    • Year and Date
      2009-10-16
    • Related Report
      2010 Final Research Report
  • [Presentation] 日本国内における大腸菌0157:H7食中毒発生状況と分離株の性状2009

    • Author(s)
      伊豫田淳, 寺嶋淳, 泉谷秀昌, 渡邉治雄
    • Organizer
      第147回日本獣医学会学術集会・ワークショップ
    • Place of Presentation
      栃木
    • Year and Date
      2009-04-04
    • Related Report
      2010 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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