A new phagemid vector for positive selection of recombinants based on a conditionally lethal barnase gene

Sergey Yazynin, Sergey Yazynin, Hans Lange, Thilo Mokros, Sergey Deyev, Hilmar Lemke

    Результат исследований: Материалы для журналаСтатья

    17 Цитирования (Scopus)

    Выдержка

    A new phagemid cloning vector for positive selection of recombinants, pBa-7, was constructed which contains an active barnase gene encoding the cytotoxic ribonuclease from Bacillus amyloliquefaciens, under control of the lac promoter. PBa-7 is a derivative of the high-copy number pBluescript II KS+ phagemid in which the modified barnase killer gene has been fused downstream from the lac promoter of the pBluescript II KS+ multiple restriction site. When a lacI(q)-negative Escherichia coli strain is transformed by this vector, the active barnase blocks bacterial growth by massive RNA destruction [1]. However, if barnase is inactivated by insertion of a foreign DNA fragment into the multirestriction site of the vector, this recombinant plasmid no longer interferes with the host viability. The positive selection of recombinant clones is highly efficient and bench manipulations are considerably simplified. When E. coli transformants are plated out on rich medium with ampicillin, only cells containing recombinant plasmids give rise to colonies. In a lacI(q)-positive host, the positive selection is IPTG-dependent. Therefore, pBa-7 phagemid can be amplified and prepared in large quantities from lacI(q)-positive E. coli hosts. Hence, pBa-7 seems to be suitable for most genetic engineering manipulations. Copyright (C) 1999 Federation of European Biochemical Societies.
    Язык оригиналаАнглийский
    Страницы (с-по)351-354
    Число страниц4
    ЖурналFEBS Letters
    Том452
    Номер выпуска3
    DOI
    СостояниеОпубликовано - 11 июн 1999

    Отпечаток

    Lethal Genes
    Genes
    Escherichia coli
    Plasmids
    Isopropyl Thiogalactoside
    Genetic engineering
    Genetic Vectors
    Gene encoding
    Genetic Engineering
    Ampicillin
    Clone Cells
    Bacillus amyloliquefaciens ribonuclease
    RNA
    Derivatives
    DNA
    Growth

    Цитировать

    A new phagemid vector for positive selection of recombinants based on a conditionally lethal barnase gene. / Yazynin, Sergey; Yazynin, Sergey; Lange, Hans; Mokros, Thilo; Deyev, Sergey; Lemke, Hilmar.

    В: FEBS Letters, Том 452, № 3, 11.06.1999, стр. 351-354.

    Результат исследований: Материалы для журналаСтатья

    Yazynin, Sergey ; Yazynin, Sergey ; Lange, Hans ; Mokros, Thilo ; Deyev, Sergey ; Lemke, Hilmar. / A new phagemid vector for positive selection of recombinants based on a conditionally lethal barnase gene. В: FEBS Letters. 1999 ; Том 452, № 3. стр. 351-354.
    @article{f4807b5401174f30ad9f9ed66428ad43,
    title = "A new phagemid vector for positive selection of recombinants based on a conditionally lethal barnase gene",
    abstract = "A new phagemid cloning vector for positive selection of recombinants, pBa-7, was constructed which contains an active barnase gene encoding the cytotoxic ribonuclease from Bacillus amyloliquefaciens, under control of the lac promoter. PBa-7 is a derivative of the high-copy number pBluescript II KS+ phagemid in which the modified barnase killer gene has been fused downstream from the lac promoter of the pBluescript II KS+ multiple restriction site. When a lacI(q)-negative Escherichia coli strain is transformed by this vector, the active barnase blocks bacterial growth by massive RNA destruction [1]. However, if barnase is inactivated by insertion of a foreign DNA fragment into the multirestriction site of the vector, this recombinant plasmid no longer interferes with the host viability. The positive selection of recombinant clones is highly efficient and bench manipulations are considerably simplified. When E. coli transformants are plated out on rich medium with ampicillin, only cells containing recombinant plasmids give rise to colonies. In a lacI(q)-positive host, the positive selection is IPTG-dependent. Therefore, pBa-7 phagemid can be amplified and prepared in large quantities from lacI(q)-positive E. coli hosts. Hence, pBa-7 seems to be suitable for most genetic engineering manipulations. Copyright (C) 1999 Federation of European Biochemical Societies.",
    keywords = "Barnase, Barstar, Cloning, Ribonuclease",
    author = "Sergey Yazynin and Sergey Yazynin and Hans Lange and Thilo Mokros and Sergey Deyev and Hilmar Lemke",
    year = "1999",
    month = "6",
    day = "11",
    doi = "10.1016/S0014-5793(99)00661-4",
    language = "English",
    volume = "452",
    pages = "351--354",
    journal = "FEBS Letters",
    issn = "0014-5793",
    publisher = "Elsevier",
    number = "3",

    }

    TY - JOUR

    T1 - A new phagemid vector for positive selection of recombinants based on a conditionally lethal barnase gene

    AU - Yazynin, Sergey

    AU - Yazynin, Sergey

    AU - Lange, Hans

    AU - Mokros, Thilo

    AU - Deyev, Sergey

    AU - Lemke, Hilmar

    PY - 1999/6/11

    Y1 - 1999/6/11

    N2 - A new phagemid cloning vector for positive selection of recombinants, pBa-7, was constructed which contains an active barnase gene encoding the cytotoxic ribonuclease from Bacillus amyloliquefaciens, under control of the lac promoter. PBa-7 is a derivative of the high-copy number pBluescript II KS+ phagemid in which the modified barnase killer gene has been fused downstream from the lac promoter of the pBluescript II KS+ multiple restriction site. When a lacI(q)-negative Escherichia coli strain is transformed by this vector, the active barnase blocks bacterial growth by massive RNA destruction [1]. However, if barnase is inactivated by insertion of a foreign DNA fragment into the multirestriction site of the vector, this recombinant plasmid no longer interferes with the host viability. The positive selection of recombinant clones is highly efficient and bench manipulations are considerably simplified. When E. coli transformants are plated out on rich medium with ampicillin, only cells containing recombinant plasmids give rise to colonies. In a lacI(q)-positive host, the positive selection is IPTG-dependent. Therefore, pBa-7 phagemid can be amplified and prepared in large quantities from lacI(q)-positive E. coli hosts. Hence, pBa-7 seems to be suitable for most genetic engineering manipulations. Copyright (C) 1999 Federation of European Biochemical Societies.

    AB - A new phagemid cloning vector for positive selection of recombinants, pBa-7, was constructed which contains an active barnase gene encoding the cytotoxic ribonuclease from Bacillus amyloliquefaciens, under control of the lac promoter. PBa-7 is a derivative of the high-copy number pBluescript II KS+ phagemid in which the modified barnase killer gene has been fused downstream from the lac promoter of the pBluescript II KS+ multiple restriction site. When a lacI(q)-negative Escherichia coli strain is transformed by this vector, the active barnase blocks bacterial growth by massive RNA destruction [1]. However, if barnase is inactivated by insertion of a foreign DNA fragment into the multirestriction site of the vector, this recombinant plasmid no longer interferes with the host viability. The positive selection of recombinant clones is highly efficient and bench manipulations are considerably simplified. When E. coli transformants are plated out on rich medium with ampicillin, only cells containing recombinant plasmids give rise to colonies. In a lacI(q)-positive host, the positive selection is IPTG-dependent. Therefore, pBa-7 phagemid can be amplified and prepared in large quantities from lacI(q)-positive E. coli hosts. Hence, pBa-7 seems to be suitable for most genetic engineering manipulations. Copyright (C) 1999 Federation of European Biochemical Societies.

    KW - Barnase

    KW - Barstar

    KW - Cloning

    KW - Ribonuclease

    UR - http://www.scopus.com/inward/record.url?scp=0033043991&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0033043991&partnerID=8YFLogxK

    U2 - 10.1016/S0014-5793(99)00661-4

    DO - 10.1016/S0014-5793(99)00661-4

    M3 - Article

    C2 - 10386620

    AN - SCOPUS:0033043991

    VL - 452

    SP - 351

    EP - 354

    JO - FEBS Letters

    JF - FEBS Letters

    SN - 0014-5793

    IS - 3

    ER -