METHOD FOR POSITIONING AND INTEGRATING TRANSGENE AND USE THEREOF

摘要

Provided in the present invention is a method for positioning and integrating transgene and a use thereof. Specifically provided is a variant loxP element. The sequence "ATAAT" of an reverse repeated sequence in a wild type loxp locus is mutated into "CACCT", i.e., a variant loxp element. Also provided in the present invention are a construct comprising the variant loxP element, a vector or host cell comprising the construct and a method for preparing a transgenic animal using the vector and the host cell.