Cyclopentenone derivative
    7.
    发明授权
    Cyclopentenone derivative 失效
    环戊烯酮衍生物

    公开(公告)号:US6136854A

    公开(公告)日:2000-10-24

    申请号:US359069

    申请日:1999-07-21

    CPC分类号: C07C69/013

    摘要: Cyclopentenone derivative having a structure of 5-(R.sub.1 COO--)-4-(R.sub.2 COO--)--substituted 2-cyclopenten-1-one (R.sub.1 and R.sub.2 are some or different and each is alkyl group, alkenyl group or aryl group) or an optically active substance thereof; a method for the manufacture of the cyclopentenone derivative by the reaction of 4,5-dihydroxy-2-cyclopenten-1-one with the corresponding carboxylic acid or a reactive derivative thereof; and anticancer agent, apoptosis-inducing agent and antibacterial agent containing said derivative.

    摘要翻译: 具有5-(R 1 COO - ) - 4-(R 2 COO - ) - 取代的2-环戊烯-1-酮的结构的环戊烯酮衍生物(R 1和R 2有一些或不同,各自为烷基,烯基或芳基)或 其光学活性物质; 通过4,5-二羟基-2-环戊烯-1-酮与相应的羧酸或其活性衍生物的反应制备环戊烯酮衍生物的方法; 和抗癌剂,凋亡诱导剂和含有所述衍生物的抗菌剂。

    Hyperthermostable .beta.-galactosidase gene, enzyme encoded thereby, and
process for production
    9.
    发明授权
    Hyperthermostable .beta.-galactosidase gene, enzyme encoded thereby, and process for production 失效
    超热稳定性β-半乳糖苷酶基因,由此编码的酶,以及生产方法

    公开(公告)号:US5744345A

    公开(公告)日:1998-04-28

    申请号:US489733

    申请日:1995-06-14

    IPC分类号: C12N9/38 C12N15/56

    CPC分类号: C12Y302/01023 C12N9/2471

    摘要: An isolated hyperthermostable .beta.-galactosidase gene derived from Pyrococcus furiosus is described. Examples include DNA sequences shown in SEQ ID NO. 2 and SEQ ID NO. 4 and DNAs hybridizable with these DNAs. A method of cloning the hyperthermostable .beta.-galactosidase gene in which each of the above sequences or portions thereof is used as a probe or primer is described. A process for producing a hyperthermostable .beta.-galactosidase by culturing a transformant into which a plasmid containing each of the above genes has been introduced is described. A particularly preferred gene encodes an SDS-resistant hyperthermostable .beta.-galactosidase.

    摘要翻译: 描述了源自激烈热球菌的分离的超热稳定性β-半乳糖苷酶基因。 实例包括SEQ ID NO: 2和SEQ ID NO。 4和DNA可与这些DNA杂交。 描述了将上述每个上述序列或其部分用作探针或引物的克隆超热稳定性β-半乳糖苷酶基因的方法。 描述了通过培养其中已经引入了含有上述每种基因的质粒的转化体来生产超热稳定性β-半乳糖苷酶的方法。 特别优选的基因编码SDS-抗性超热稳定性β-半乳糖苷酶。