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    • 45. 发明申请
    • Method for biochemical analysis of dna and arrangement associated therewith
    • dna生化分析方法及其相关配置
    • US20050164199A1
    • 2005-07-28
    • US10514019
    • 2003-05-18
    • Manfred StanzelMathias Sprinzl
    • Manfred StanzelMathias Sprinzl
    • C12Q1/68
    • C12Q1/6818C12Q2563/125C12Q2527/127
    • A system with immobilized DNA is used in the fields of medicine, environmentology or criminology as an analytical tool in the analysis of nucleic acid. The immobilized DNA is provided with a biocatalytically active marker, such as an enzyme, an with an inhibitor substance which reversibly inhibits catalytic activity, or in addition to the immobilized biocatalytic marker, the immobilized DNA is provided with a substance which can reversibly inhibit the catalytic activity of the marker. Alternatively, an immobilized biocatalytically active marker can be provided with DNA as a scavenger which includes a substance as an inhibitor which can reversibly inhibit the activity of the marker. In another alternative, it is possible to use a complex including a molecule binding double-stranded DNA and a substance as an inhibitor which can reversibly inhibit the activity of the marker by interacting with the immobilized biocatalytically active marker. In all cases, the inhibitor or compound including an inhibitor and a molecule which can bind double-stranded DNA interacts with the biocatalytically active marker and defines the inactive state of the system. When the DNA, which is to be analyzed, is bonded, especially hybridized, to the DNA scavengers, the interaction between the biocatalytically active marker and the inhibitor is cancelled as a result of the formation of the double strand. The system is thus shifted from a first state into a second state defining the active state. A carrier with integrated microelectrodes is provided in the associated device, whereby the enzyme is either immobilized therein or is contained in a polymer network in the vicinity of the microelectrodes.
    • 在医学,环境学或犯罪学领域使用具有固定化DNA的系统作为分析核酸的分析工具。 固定化的DNA具有生物催化活性的标记,例如酶,具有可逆抑制催化活性的抑制剂物质,或除了固定化的生物催化标记之外,固定的DNA具有可逆性抑制催化的物质 标记的活动。 或者,可以提供固定化的生物催化活性标记物作为清除剂,其包括可逆性抑制标记物活性的抑制剂的物质。 在另一个替代方案中,可以使用包含分子结合双链DNA和物质作为抑制剂的复合物,其可以通过与固定的生物催化活性标记物相互作用来可逆地抑制标记物的活性。 在所有情况下,包括抑制剂和可以结合双链DNA的分子的抑制剂或化合物与生物催化活性标记相互作用,并定义系统的不活动状态。 待分析的DNA与DNA清除剂结合,特别是杂交时,生物催化活性标记与抑制剂之间的相互作用由于形成双链而被消除。 因此,系统从第一状态转移到定义活动状态的第二状态。 在相关装置中提供具有集成微电极的载体,由此将酶固定在其中或者包含在微电极附近的聚合物网络中。