Method for the Production of Modified Steroid Degrading Microorganisms and their Use
    3.
    发明申请
    Method for the Production of Modified Steroid Degrading Microorganisms and their Use 审中-公开
    改性类固醇降解微生物生产方法及其应用

    公开(公告)号:US20090186390A1

    公开(公告)日:2009-07-23

    申请号:US12194903

    申请日:2008-08-20

    摘要: A method is described to construct genetically modified strains of steroid degrading micro-organisms wherein the method comprises inactivation of at least one gene involved in methylhexahydroindanedione propionate degradation. Strains with (multiple) inactivated steroid degrading enzyme genes according to the invention can be used in the accumulation of steroid intermediates. Accumulation products are for example 3aα-H-4α(3′-propionic acid)-7aβ-methylhexahydro-1,5-indanedione (HIP), 3-hydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione (3-HSA), 1,4-androstadiene-3,17-dione (ADD) and 3aα-H-4α(3′-propionic acid)-5α-hydroxy-7aβ-methylhexahydro-1-indanone-δ-lactone (HIL).

    摘要翻译: 描述了一种构建基因修饰的类固醇降解微生物菌株的方法,其中所述方法包括使参与甲基六氢茚满酮丙酸酯降解的至少一个基因的失活。 具有根据本发明的(多个)灭活的类固醇降解酶基因的菌株可用于类固醇中间体的积累。 累积产物是例如3aalpha-H-4alpha(3'-丙酸)-7β-甲基六氢-1,5-茚二酮(HIP),3-羟基-9,10-雄甾-1,3,5(10) - 三烯-9,17-二酮(3-HSA),1,4-雄甾二烯-3,17-二酮(ADD)和3aalpha-H-4α(3'-丙酸)-5α-羟基-7β-甲基六氢-1 - 茚满酮-δ-内酯(HIL)。

    New expression system from rhodococcus
    5.
    发明申请
    New expression system from rhodococcus 审中-公开
    来自红球菌的新表达系统

    公开(公告)号:US20060172423A1

    公开(公告)日:2006-08-03

    申请号:US10537201

    申请日:2003-12-02

    IPC分类号: C12N15/74 C12N1/21 C07H21/04

    CPC分类号: C12N15/74 C07K14/36

    摘要: The present invention provides an isolated polynucleotide comprising the kstD promoter from Rhodococcus erythrypolis. The polynucleotide can very advantageously be used as a controllable transcription activator. Said controlling function can be provided by providing said isolated polynucleotide with a nucleotide sequence encoding a transcription regulator of said promoter. In the present invention, such a transcription regulator may be externally induced, such as by introduction of steroidal compounds. In an alternative embodiment of the present invention the isolated polynucleotide may comprise the kstR gene or a homologue or a functional part thereof as the transcription regulator of the kstD promoter.

    摘要翻译: 本发明提供了包含来自红球菌的kstD启动子的分离的多核苷酸。 多核苷酸可以非常有利地用作可控转录激活因子。 可以通过向所述分离的多核苷酸提供编码所述启动子的转录调节子的核苷酸序列来提供所述控制功能。 在本发明中,这种转录调节剂可以通过引入甾族化合物而被外部诱导。 在本发明的替代实施方案中,分离的多核苷酸可以包含kstR基因或其同源物或其功能部分作为kstD启动子的转录调节子。