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    • 2. 发明申请
    • METHODS FOR TWO-DIMENSIONAL CONFORMATION-DEPENDENT SEPARATION OF NON-CIRCULAR NUCLEIC ACIDS
    • 非圆形核酸二维配位依赖性分离方法
    • WO2003070943A1
    • 2003-08-28
    • PCT/IS2003/000011
    • 2003-02-25
    • LIFEIND EHF.JONSSON, Jon JohannesTHORMAR, Hans GuttormurGUNNARSSON, Gudmundur H.GUDMUNDSSON, Bjarki
    • JONSSON, Jon JohannesTHORMAR, Hans GuttormurGUNNARSSON, Gudmundur H.GUDMUNDSSON, Bjarki
    • C12N15/10
    • C12N15/101
    • Methods are provided for separating linear nucleic acid fragments based on their conformation. The methods are based on novel two-dimensional gel electrophoresis techniques. In one aspect the method comprises electrophoresing a sample of nucleic acids in a first dimension said sample through a gel matrix under a first set of pre-determined electrophoresis conditions; electrophoresing said gel matrix in a second dimension under a second set of electrophoresis conditions, such that linear nucleic acid fragments of equal length but having different conformation are separated; said first and second electrophoresis conditions are different, such that in one of said dimensions electrophoresis allows separation of linear nucleic acid fragments based on conformation and length, and in the other of said dimensions electrophoresis allows separation of the sample fragments based substantially on length. Said difference is preferably established with a chemical agent capable of reducing conformational differences between linear nucleic acids fragments.
    • 提供了基于其构象分离线性核酸片段的方法。 该方法基于新型二维凝胶电泳技术。 在一个方面,该方法包括在第一维度的所述样品中以第一组预定电泳条件通过凝胶基质电泳核酸样品; 在第二组电泳条件下在第二维中电泳所述凝胶基质,使得分离相同长度但具有不同构象的线性核酸片段; 所述第一和第二电泳条件是不同的,使得在所述尺寸之一中,电泳允许基于构象和长度分离线性核酸片段,并且在所述尺寸的另一个中,电泳允许基本上基于长度分离样品片段。 所述差异优选与能够降低线性核酸片段之间的构象差异的化学试剂建立。