T7 RNA POLYMERASE VARIANTS WITH CYSTEINE-SERINE SUBSTITUTIONS
    3.
    发明申请
    T7 RNA POLYMERASE VARIANTS WITH CYSTEINE-SERINE SUBSTITUTIONS 审中-公开
    T7 RNA聚合酶与CYSTEINE-丝氨酸取代的变体

    公开(公告)号:US20120252071A1

    公开(公告)日:2012-10-04

    申请号:US13436110

    申请日:2012-03-30

    CPC classification number: C12N9/1247 C12Y207/07006

    Abstract: The present disclosure provide novel variants of T7 RNA polymerase. Embodiments of T7 variants, according to the instant invention, include a Cysteine-Serine substitution on position 723 of the amino acid sequence of the T7 polypeptide. Embodiments of T7 variants according to the instant invention have a DNA-dependent RNA polymerase enzymatic activity and a reduced tendency to form intramolecular homodimers by way of oxidizing thiol groups. The amino acid substitutions within the T7 variants disclosed herein impact minimally, if at all, the RNA polymerase activity of the T7 polypeptide. Further, the mutations of the disclosed embodiments may optionally be combined with mutations which provide enhanced thermostability compared to the wild-type reference.

    Abstract translation: 本公开提供了T7RNA聚合酶的新变体。 根据本发明的T7变体的实施方案包括T7多肽的氨基酸序列的位置723上的半胱氨酸 - 丝氨酸取代。 根据本发明的T7变体的实施方案具有DNA依赖性RNA聚合酶酶活性,并且通过氧化硫醇基形成分子内同型二聚体的趋势降低。 本文公开的T7变体内的氨基酸取代最小程度地影响T7多肽的RNA聚合酶活性。 此外,所公开的实施方案的突变可以任选地与与野生型参考物相比提供增强的热稳定性的突变组合。

    PROCESS FOR PREPARING TRIALLYL ISOCYANURATE (TAIC)
    9.
    发明申请
    PROCESS FOR PREPARING TRIALLYL ISOCYANURATE (TAIC) 有权
    制备三异氰酸酯(TAIC)的方法

    公开(公告)号:US20090312545A1

    公开(公告)日:2009-12-17

    申请号:US12307592

    申请日:2007-06-14

    CPC classification number: C07D251/34

    Abstract: The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at least 90° C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160° C. and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.

    Abstract translation: 本发明涉及一种改进的,可靠的可行的制备三烯丙基异氰脲酸酯(TAIC)的方法,所述三烯丙基异氰脲酸酯是通过三异丙烯酸三烯丙酯(TAC)至少90℃的Cu 2+催化重排来制备的。根据本发明,如果需要,TAC和Cu 2+催化剂 在最初抑制的异构化反应开始后,将溶剂连续加入到起始反应混合物中,异构化在90〜160℃下进行,反应混合物的量等同于反应物的量连续排出并送至 的后卫。 优选在TAIC中作为反应介质进行异构化。

    PORTABLE AERIAL PLATFORM
    10.
    发明申请
    PORTABLE AERIAL PLATFORM 审中-公开
    便利的航空平台

    公开(公告)号:US20090071751A1

    公开(公告)日:2009-03-19

    申请号:US11857277

    申请日:2007-09-18

    CPC classification number: B66F11/04

    Abstract: The invention is directed to a vertically and horizontally-controlled, retractable aerial platform mountable on the bed of a vehicle for supporting a person or materials. The aerial platform includes a base, at least one support arm, a first support member, a second support member, a platform, and actuation means. The aerial platform may further include a collapsible frame. The aerial platform is vertically and horizontally-controlled, allowing a workman to adjust both the height and extension distance of the platform so that work functions can be readily performed. The aerial platform is portable, compact and suitable for use in a variety of commercial vehicles.

    Abstract translation: 本发明涉及一种可安装在车辆床上的用于支撑人或材料的垂直和水平控制的可收回的空中平台。 空中平台包括基座,至少一个支撑臂,第一支撑构件,第二支撑构件,平台和致动装置。 空中平台还可以包括可折叠框架。 空中平台是垂直和水平控制的,允许工作人员调整平台的高度和延伸距离,从而可以轻松执行工作功能。 空中平台便携,紧凑,适用于各种商业车辆。

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