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    • 2. 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。
    • 3. 发明申请
    • COMPOSITIONS AND METHODS FOR PREVENTING CARRY-OVER CONTAMINATION IN NUCLEIC ACID AMPLIFICATION REACTIONS
    • 防止核酸扩增反应中携带污染的组合物和方法
    • WO2006009870A3
    • 2006-06-22
    • PCT/US2005021525
    • 2005-06-17
    • EPIGENOMICS AGTETZNER REIMOBERLIN KURTDISTLER JUERGEN
    • TETZNER REIMOBERLIN KURTDISTLER JUERGEN
    • C12Q1/68
    • C12Q1/6848C12Q2527/101C12Q2521/301
    • Particular aspects provide methods for the specific amplification of template DNA in the presence of potentially contaminating PCR products from previous amplification experiments, but wherein the contaminating prior reaction amplificates (carry-over contaminants) are rendered non-amplifiable, based on use of particular contaminant degradation enzmes, and use of at least one primer that is fully complementary to any contaminating prior reaction amplificate nucleic acid, but contains a mismatch with the correspond sequence of the sample template nucleic acid. Additional aspects provide a method for the specific amplification of single-stranded sample template DNA in the presence of potentially double-stranded carry-over products. Further aspects provide methods comprising use of a template-dependent thermostable DNA polymerase enzyme suitable for incorporating ribonucleotides as well as deoxy-nucleotides to provide a chimeric amplificate. After digestion with an RNase, any contaminating prior chimeric amplificate, the RNase is inactivated. These aspects are surprisingly effective alternatives to the carry over protection system known as UNG system, and other art-recognized methods.
    • 特定方面提供了在存在来自先前扩增实验的潜在污染PCR产物的情况下特异性扩增模板DNA的方法,但是其中基于使用特定的污染物降解使污染的在先反应扩增物(遗留污染物)变得不可扩增 以及使用至少一种与任何污染性在先反应扩增核酸完全互补但包含与样品模板核酸的相应序列错配的引物。 另外的方面提供了用于在潜在的双链结转产物的存在下特异性扩增单链样品模板DNA的方法。 其它方面提供了包括使用适合于掺入核糖核苷酸的模板依赖性热稳定DNA聚合酶以及脱氧核苷酸以提供嵌合扩增物的方法。 用RNase消化后,任何污染的嵌合扩增物,RNA酶都会失活。 这些方面是称为UNG系统的结转保护系统以及其他本领域公认的方法的出乎意料的有效替代方案。
    • 6. 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。
    • 10. 发明申请
    • METHOD FOR DISTINGUISHING 5-POSITION METHYLATION CHANGES
    • 区别5号位置的方法更改甲基
    • WO0127317A3
    • 2002-01-17
    • PCT/DE0003726
    • 2000-10-13
    • EPIGENOMICS AGBERLIN KURT
    • BERLIN KURT
    • G01N27/62C12N15/09C12Q1/48C12Q1/68G01N21/78G01N27/447G01N33/483G01N33/53G01N33/566G01N33/58
    • C12Q1/6827C12Q2523/125C12Q2521/125
    • The invention relates to a method for distinguishing 5-position methylation changes of cytosine bases and cytosine-to-thymine mutations and for detecting single nucleotide polymorphisms (SNPs) or point mutations in genomic DNA, comprising the following steps: a) treating a genomic DNA-sample with sulphite or disulphite in such a way that all of the cytosine bases not methylated in the 5-position of the base are changed in such a way as to produce a different base according to the base pairing behaviour while the cytosines which are methylated in the 5-position remain unchanged; b) quantitatively methylating an aliquot of the same genomic DNA sample before chemical treatment according to a) with Sss1 or another methyltransferase; c) testing the two DNA samples treated in this way for the presence of cytosine using the same analytical methods; and d) comparing the cytosine positions that are detected with a reference DNA-sequence.
    • 描述了一种用于区分的胞嘧啶碱基和胞嘧啶到胸腺嘧啶的突变5-位甲基化的变化和用于检测单核苷酸多态性(SNP),或在基因组DNA中的点突变,一个方法,其中,魔法)与亚硫酸盐或焦亚基因组DNA样品 处理,使得所有未甲基化在基胞嘧啶碱基的5位上被改变,从而使得由碱基配对行为,以不同的基发生,而甲基化在胞嘧啶的5-位上保持不变,和b)的相同基因组DNA的等分试样 定量甲基化的样品之前根据与SSS1化学处理)或其他甲基,和c)将如此处理由胞嘧啶的存在与参考DNA序列确定的胞嘧啶的位置相同的分析方法,以及d)检测所述两个DNA样品 匹配。