Safe and versatile cloning vector
    1.
    发明授权
    Safe and versatile cloning vector 失效
    安全多功能的克隆载体

    公开(公告)号:US5290691A

    公开(公告)日:1994-03-01

    申请号:US814203

    申请日:1991-12-26

    CPC分类号: C12N15/75 C12N15/78

    摘要: A safe and versatile recombinant DNA cloning vector having at least two functionally different replication origins selected independently from the group consisting of a replication origin functional in Bacillus subtilis, a replication origin functional in Escherichia coli and a replication origin functional in Pseudomonas aeruginosa, and at least one DNA segment which provides resistance against at least one antibiotic after introduction into susceptible host cells. The origin for replication origin functional in Bacillus subtilis can be a restriction fragment of a plasmid of Gram positive bacteria, and that Escherichia coli or Pseudomonas aeruginosa can be a restriction fragment of a plasmid of Gram negative bacteria, e.g. a restriction fragment of plasmids pMS 140-1 or pMS 71.

    摘要翻译: 一种安全且通用的重组DNA克隆载体,其具有至少两个功能上不同的复制起点,其独立地选自在枯草芽孢杆菌中起作用的复制起点,在大肠杆菌中起作用的复制起点和在铜绿假单胞菌中起作用的复制起点,以及至少 一个DNA片段,其在引入易感宿主细胞后提供对至少一种抗生素的抗性。 在枯草芽孢杆菌中起作用的复制起点可以是革兰氏阳性细菌质粒的限制性片段,并且大肠杆菌或铜绿假单胞菌可以是革兰氏阴性细菌质粒的限制性片段,例如, 质粒pMS 140-1或pMS 71的限制性片段。

    Cephalosporinase testing agent
    2.
    发明授权
    Cephalosporinase testing agent 失效
    头孢菌素试剂

    公开(公告)号:US5350680A

    公开(公告)日:1994-09-27

    申请号:US976993

    申请日:1993-02-02

    IPC分类号: C12Q1/34 C12Q1/04 A61K31/43

    摘要: A cephalosporinase testing agent comprising a cephalosporin antibiotic, a penicillinase inhibitor in an amount of 20% by weight or less based on the weight of the cephalosporin-antibiotic, and a pH indicator which may be bromcresol purple is provided. A cephalosporinase producing bacteria can be judged by smearing a sample containing bacteria to be tested on the testing agent and observing the color tone change. According to this agent, cephalosporinase-active penicillinase producing bacteria are judged cephalosporinase-negative owing to the action of the penicillinase inhibitor, which may be clavulanic acid. Therefore, since only cephalosporinase producing bacteria are judged cephalosporinase-positive, this agent enables error free judgment.

    摘要翻译: PCT No.PCT / JP91 / 01732 Sec。 371日期:1993年2月2日 102(e)日期1993年2月2日PCT 1991年12月18日PCT PCT。 第WO92 / 11386号公报 日期:1992年7月9日。包含头孢菌素抗生素,基于头孢菌素 - 抗生素重量的20重量%以下的青霉素酶抑制剂和可以是溴甲酚紫的pH指示剂的头孢菌素试验剂 。 可以通过在测试剂上涂抹含有待测细菌的样品并观察色调变化来判断产生头孢菌素的细菌。 根据该试剂,由于可能是克拉维酸的青霉素酶抑制剂的作用,头孢菌素酶活性青霉素酶产生菌被判定为头孢菌素阴性。 因此,由于只有头孢菌素产生菌被判断为头孢菌素阳性,所以该试剂能够进行无错误判断。