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    • 5. 发明申请
    • ANALYSIS OF METHYLATION PATTERNS IN GENOMIC DNA USING BISULFITE TREATMENT AND FLUORESCENCE POLARISATION ASSAY TECHNIQUES
    • 使用双相处理和荧光偏振测定技术分析基因组DNA中的甲基化模式
    • WO02061124A3
    • 2003-09-04
    • PCT/EP0200923
    • 2002-01-29
    • EPIGENOMICS AGBERLIN KURTDISTLER JUERGEN
    • BERLIN KURTDISTLER JUERGEN
    • C12Q1/68
    • C12Q1/6858C12Q2561/119C12Q2523/125
    • A method for the analysis of the methylation of cytosine bases in genomic DNA samples, comprising the following steps:(a) the genomic DNA is chemically treated in such a manner that cytosine is converted into uracil or a similar base regarding the base pairing behaviour in the DNA duplex, 5 methylcytosine however remains unchanged;(b) the chemically treated DNA is amplified using of at least one species of oligonucleotide (type A) as a primer in a polymerase reaction;(c) the amplificate is left in solution with one or more species of fluorophore labelled nucleotides and one or more species of oligonucleotide (type B) , wherein the type B oligonucleotide hybridises under appropriate conditions with its 3' end directly on or up to 10 bases from the position to be examined, and wherein said type B oligonucleotide is at least partly nuclease resistant;(d) the hybridised oligonucleotide (type B) is extended by means of a polymerase by at least one nucleotide, whereby the extension is dependant upon the methylation status of the respective cytosine position in the genomic DNA sample;(e) the solution is incubated with a phosphodiesterase, which is capable of digesting nucleic acids, however incompletely digests the type B oligonucleotides and its extension products;(f) the fluorescence polarisation of the solution is measured whereby for each fluorescent label used one determines the degree of polarisation.
    • 一种用于分析基因组DNA样品中胞嘧啶碱基甲基化的方法,包括以下步骤:(a)基因组DNA以如下方式化学处理,即将胞嘧啶转化为尿嘧啶或类似的碱基,与碱基配对行为相关 然而,DNA双链体5甲基胞嘧啶保持不变;(b)在聚合酶反应中使用至少一种寡核苷酸(A型)作为引物扩增化学处理的DNA;(c)将扩增体与溶液中的一个置于一个 或更多种荧光团标记的核苷酸和一种或多种寡核苷酸(B型),其中B型寡核苷酸在适当条件下与其3'端直接在待检查的位置上或多达10个碱基杂交,并且其中所述 B型寡核苷酸至少部分具有核酸酶抗性;(d)通过聚合酶将杂交的寡核苷酸(B型)延伸至少一个核苷酸,由此延伸是依赖的 (e)将该溶液与能够消化核酸的磷酸二酯酶一起温育,然而不完全消化B型寡核苷酸及其延伸产物;(f) 测量溶液的荧光偏振,由此使用的每个荧光标记物决定偏振度。
    • 7. 发明申请
    • METHOD FOR THE HIGHLY PARALLEL ANALYSIS OF POLYMORPHISMS
    • 方法多态性的高度并行分析
    • WO0181620A3
    • 2003-02-13
    • PCT/DE0101607
    • 2001-04-25
    • EPIGENOMICS AGBERLIN KURTGUT IVO GLYNNE
    • BERLIN KURTGUT IVO GLYNNE
    • C12Q1/68
    • C12Q1/6827C12Q2565/627C12Q2565/501C12Q2523/319C12Q2523/107
    • The invention relates to a method for the highly parallel characterization of polymorphisms, especially SNPs, which can be used for the simultaneous or separate detection of DNA methylations. A set of probes that is provided with at least one detectable marking characteristic of the corresponding probe is bound to an addressed surface, the bond of the probes to the surface being photochemically, chemically or enzymatically cleavable. A nucleic acid to be analyzed is then bound to said probes, the probes are modified in an allele-specific enzymatic reaction and a part of the probes that is irrelevant for the analysis of the allele-specific reaction is removed. The allele-specific products are analyzed by means of the detectable markings and the alleles present in the analyzed nucleic acid probe are determined.
    • 公开了用于多态性,即,可用于DNA甲基化的同时或分开的检测特别SNP的高度并行的表征的方法。 首先,以配合一组探针,其设置有各自的探针可检测标记中的至少一个特性,向寻址表面,光化学产生的探针的结合,化学或酶促裂解的背面到表面。 然后杂交到核酸待检查到这些探针中,探针在等位基因特异性酶促反应改变,并且除去它是无关的等位基因特异性反应的分析的探针的部分。 最近分析的可检测标记的基础上allelespezifischen产品和使得本由询问核酸样品中等位基因的确定。