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    • 3. 发明授权
    • Enzymatic degrading subtraction hybridization
    • 酶降解杂交
    • US5525471A
    • 1996-06-11
    • US322075
    • 1994-10-12
    • Jin Zeng
    • Jin Zeng
    • C12Q1/68
    • C12Q1/6809
    • A method for subtractive hybridization of desired DNA sequences from two cell or tissue populations. cDNA from experimental cells or tissues is modified by incorporation of nucleoside analogs to prevent subsequent exonuclease attack. Hybridization of the experimental and control cDNA is performed using the phenol-emulsion reassociation technique. The hybridized DNA is incubated with exonucleases, resulting in degradation of all but the desired duplex DNA which may then be amplified. This technique may be used to isolate differentially expressed genes or gene fragments and will contribute to our understanding of pathological conditions and developmental regulation.
    • 用于从两个细胞或组织群体中减去所需DNA序列的方法。 通过掺入核苷类似物来防止随后的核酸外切酶攻击来修饰来自实验细胞或组织的cDNA。 实验和对照cDNA的杂交使用酚 - 乳液重新缔合技术进行。 将杂交的DNA与外切核酸酶一起孵育,导致所有的所有双链体DNA的降解,然后可以将其扩增。 该技术可用于分离差异表达的基因或基因片段,并将有助于我们对病理状况和发育调节的理解。