Method of DNA sequencing employing a mixed DNA-polymer chain probe
    16.
    发明授权
    Method of DNA sequencing employing a mixed DNA-polymer chain probe 失效
    使用混合DNA-聚合物链探针进行DNA测序的方法

    公开(公告)号:US5580732A

    公开(公告)日:1996-12-03

    申请号:US296880

    申请日:1994-08-26

    摘要: Method and composition for detecting one or more selected polynucleotide regions in a target polynucleotide. In the method, a mixture of sequence-specific probes are reacted with the target polynucleotide under hybridization conditions, and the hybridized probes are treated to selectively modify those probes which are bound to the target polynucleotide in a base-specific manner. The resulting labeled probes include a polymer chain which imparts to each different-sequence probe, a distinctive ratio of charge/translational frictional drag, and a detectable label. The labeled probes are fractionated by electrophoresis in a non-sieving matrix, and the presence of one or more selected sequences in the target polynucleotide are detected according to the observed electrophoretic migration rates of the labeled probes in a non-sieiving medium.

    摘要翻译: 用于检测靶多核苷酸中的一个或多个选择的多核苷酸区域的方法和组合物。 在该方法中,将序列特异性探针的混合物与靶多核苷酸在杂交条件下反应,并对杂交的探针进行处理以选择性地修饰以碱基特异性方式结合靶多核苷酸的那些探针。 所得到的标记探针包括赋予每个不同序列探针的聚合物链,电荷/平移摩擦阻力的独特比例和可检测标记。 标记的探针通过在非筛选基质中的电泳进行分级,并且根据在非筛选培养基中标记的探针的观察到的电泳迁移速率来检测靶多核苷酸中一个或多个选定序列的存在。

    Probe composition containing a binding domain and polymer chain and
methods of use
    17.
    发明授权
    Probe composition containing a binding domain and polymer chain and methods of use 失效
    含有结合域和聚合物链的探针组合物及其使用方法

    公开(公告)号:US5470705A

    公开(公告)日:1995-11-28

    申请号:US866018

    申请日:1992-04-07

    IPC分类号: C12Q1/68

    摘要: Method and composition for detecting one or more selected polynucleotide regions in a target polynucleotide. In the method, a mixture of sequence-specific probes are reacted with the target polynucleotide under hybridization conditions, and the hybridized probes are treated to selectively modify those probes which are bound to the target polynucleotide in a base-specific manner. The resulting labeled probes include a polymer chain which imparts to each different-sequence probe, a distinctive ratio of charge/translational frictional drag, and a detectable label. The labeled probes are fractionated by electrophoresis in a non-sieving matrix, and the presence of one or more selected sequences in the target polynucleotide are detected according to the observed electrophoretic migration rates of the labeled probes in a non-sieving medium.

    摘要翻译: 用于检测靶多核苷酸中的一个或多个选择的多核苷酸区域的方法和组合物。 在该方法中,将序列特异性探针的混合物与靶多核苷酸在杂交条件下反应,并对杂交的探针进行处理以选择性地修饰以碱基特异性方式结合靶多核苷酸的那些探针。 所得到的标记探针包括赋予每个不同序列探针的聚合物链,电荷/平移摩擦阻力的独特比例和可检测标记。 标记的探针通过在非筛选基质中的电泳分级分离,并且根据在非筛选培养基中标记的探针的观察到的电泳迁移速率来检测靶多核苷酸中一个或多个选定序列的存在。

    Aromatic substituted glycoside
    18.
    发明授权
    Aromatic substituted glycoside 失效
    芳香取代糖苷

    公开(公告)号:US5158872A

    公开(公告)日:1992-10-27

    申请号:US565092

    申请日:1990-08-10

    摘要: An aromatic substituted glycoside is disclosed of the formula ##STR1## wherein the configuration of the substituted --OR on the anomeric carbon is alpha, n is an integer of 0 or 1, and R is a substituted aromatic radical selected from the group ##STR2## where R.sub.1 through R.sub.6 are independently halogen, NO.sub.2, SO.sub.3 H, ##STR3## where R.sub.7 is lower alkyl; and includes its stereoisomers, optical isomers and geometric isomers and mixtures of the foregoing isomers. These substrates are useful as direct substrates for alpha-amylases. A process for the preparation of the substrates and related substances is also described.

    摘要翻译: 公开了芳族取代的糖苷,其具有式“IMAGE”,其中在端基异碳上的取代的-OR的构型是α,n是0或1的整数,R是选自下组的取代的芳族基团: (a)其中R 1至R 6独立地为卤素,NO 2,SO 3 H,其中R 7为低级烷基; 并包括其立体异构体,光学异构体和几何异构体以及前述异构体的混合物。 这些底物可用作α-淀粉酶的直接底物。 还描述了制备基底和相关物质的方法。