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        The LoxP/CRE System and Genome Modification

        互联网

        944
        Conventional gene knockout technology by homologous recombination can provide important information toward elucidating the function of some genes; however, the role of many genes cannot be investigated due to early embryonic lethality. Alternatively, the role of a particular gene in adult tissues may be masked by developmental abnormalities in any knockout animals generated. The implementation of site specific recombinases, such as the bacteriophage P1 LoxP /CRE system, enables the development of conditional knockouts that lack a particular gene only in a specific tissue or after a specific stage of development. This system can also be used to facilitate transgene activation/inactivation in vivo, deletions of large stretches of genomic DNA, chromosomal translocation and subtle alterations to genes and/or their regulatory sequences in vivo.
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