诺真法 Northern method
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指凝胶电泳分离的RNA在保持电泳的状态下,移于重氮苄羟甲基纸或硝基纤维素滤膜上的技术方法。以放射性同位素标记的 DNA为探测剂进行杂交,来测定具有互补的 RNA链,或用以测定前体 RN。因此法与以前邵真( E. M. Southern)创造的移 DNA的邵真氏法相反,而是将 RNA移于膜上,所以与 Southern(南)对应而称为 Northern(北)法。(参见邵真氏法、 DNA- RNA杂交)。
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