Recombinant thermostable enzyme which releases trehalose from non-reducing saccharide
    3.
    发明授权
    Recombinant thermostable enzyme which releases trehalose from non-reducing saccharide 失效
    从非还原性糖释放海藻糖的重组热稳定酶

    公开(公告)号:US06346394B1

    公开(公告)日:2002-02-12

    申请号:US09055210

    申请日:1998-04-06

    IPC分类号: C12N924

    摘要: Disclosed is a recombinant thermostable enzyme which has a molecular weight of about 54,000-64,000 daltons and a pI of about 5.6-6.6, and releases trehalose from non-reducing saccharides having a trehalose structure as an end unit and a degree of glucose polymerization of at least 3. The enzyme has a satisfactorily-high thermostability, i.e. it is not substantially inactivated even when incubated in an aqueous solution (pH 7.0) at 85° C. for 60 min, and this facilitates the production of trehalose on an industrial scale and in a satisfactorily-high yield.

    摘要翻译: 公开了一种重组热稳定酶,其分子量为约54,000-64,000道尔顿,pI为约5.6-6.6,并且从具有海藻糖结构的末端单元和葡萄糖聚合度的非还原性糖释放海藻糖 该酶具有令人满意的高的热稳定性,即使在85℃下在水溶液(pH7.0)中孵育60分钟也不会基本上灭活,这有助于以工业规模生产海藻糖, 以令人满意的高产量。

    TREHALOSE PHOSPHORYLASES AND THEIR USE IN THE BIOCATALYTIC PRODUCTION OF TREHALOSE-ANALOGUES AND GLYCOSYL PHOSPHATES
    4.
    发明申请
    TREHALOSE PHOSPHORYLASES AND THEIR USE IN THE BIOCATALYTIC PRODUCTION OF TREHALOSE-ANALOGUES AND GLYCOSYL PHOSPHATES 有权
    TREHALOSE磷酸钙及其在TREHALOSE-ANALOGUES和GLYCOSYL PHOSPHATE生物生产中的应用

    公开(公告)号:US20130302857A1

    公开(公告)日:2013-11-14

    申请号:US13885789

    申请日:2011-12-09

    IPC分类号: C12N9/10

    摘要: The present invention relates to trehalose phosphorylases which are useful for the industrial production of trehalose-analogues and glycosyl phosphates. More specifically, the invention discloses trehalose phosphorylases which are mutated in specific amino acid regions. These specific mutations result in modified substrate specificities of the enzymes. In addition, the present invention discloses a wild type trehalose phosphorylase from the marine organism Caldanaerobacter subterraneus, and mutated types thereof, which are highly thermostable and have a broad acceptor and donor specificity.

    摘要翻译: 本发明涉及可用于工业生产海藻糖类似物和糖基磷酸盐的海藻糖磷酸酶。 更具体地,本发明公开了在特定氨基酸区域突变的海藻糖磷酸酶。 这些特异性突变导致酶修饰的底物特异性。 此外,本发明公开了一种来自海洋生物体Caldanaerobacter subterraneus的野生型海藻糖磷酸化酶及其突变型,其具有高度热稳定性并具有广泛的受体和供体特异性。

    Trehalose phosphorylases and their use in the biocatalytic production of trehalose-analogues and glycosyl phosphates
    7.
    发明授权
    Trehalose phosphorylases and their use in the biocatalytic production of trehalose-analogues and glycosyl phosphates 有权
    海藻糖磷酸酶及其在海藻糖类似物和糖基磷酸酯的生物催化生产中的应用

    公开(公告)号:US09102922B2

    公开(公告)日:2015-08-11

    申请号:US13885789

    申请日:2011-12-09

    摘要: The present invention relates to trehalose phosphorylases which are useful for the industrial production of trehalose-analogs and glycosyl phosphates. More specifically, the invention discloses trehalose phosphorylases which are mutated in specific amino acid regions. These specific mutations result in modified substrate specificities of the enzymes. In addition, the present invention discloses a wild type trehalose phosphorylase from the marine organism Caldanaerobacter subterraneus, and mutated types thereof, which are highly thermostable and have a broad acceptor and donor specificity.

    摘要翻译: 本发明涉及可用于工业生产海藻糖类似物和糖基磷酸盐的海藻糖磷酸酶。 更具体地,本发明公开了在特定氨基酸区域突变的海藻糖磷酸酶。 这些特异性突变导致酶修饰的底物特异性。 此外,本发明公开了一种来自海洋生物体Caldanaerobacter subterraneus的野生型海藻糖磷酸化酶及其突变型,其具有高度热稳定性并具有广泛的受体和供体特异性。