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handle: 10261/31123
[EN]The invention relates to a method for inserting a nucleic acid molecule into any specific target DNA sites. The method comprises the following steps: the introduction of the group II intron RNA which contains two nucleotide sequences capable of hybridising with two sequences contained in one of the strands of the DNA substrate; the modification of the intron RNA sequences, which hybridise with the substrate DNA, such that the specific sequences in one of the strands of a given DNA substrate can be identified; and the addition of a protein coded by the intron which, in its wild form, has no endonuclease domain. The reengineered group II intron is suitable for any in vivo or in vitro application and particularly for mutagenesis. [ES]El método permite la inserción de una molécula de ácido nucleico en sitios específicos de cualquier ADN diana. El método consiste en: la disposición del ARN de un intrón del grupo II que contenga dos secuencias nucleotídicas capaces de hibridar con dos secuencias contenidas en una de las hebras del ADN sustrato la modificación de las secuencias del ARN del intrón, que hibridan con el ADN sustrato, de tal manera que reconozcan secuencias específicas en una de las hebras de un sustrato dado de ADN y por último, aportar una proteína codificada por el intrón que en su forma silvestre carece del dominio endonucleasa. El intrón del grupo II rediseñado, puede emplearse en cualquier aplicación in vivo o in vitro, y en particular en mutagénesis.
Fecha de solicitud: 24.01.2002.- Titular: Consejo Superior de Investigaciones Científicas (CSIC).
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