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CLICK: one-step generation of conditional knockout mice #MMPMID29720086
BMC Genomics 2018[]; 19 (ä): ä PMID29720086show ga
Background: CRISPR/Cas9 enables the targeting of genes in zygotes; however, efficient approaches to create loxP-flanked (floxed) alleles remain elusive. Results: Here, we show that the electroporation of Cas9, two gRNAs, and long single-stranded DNA (lssDNA) into zygotes, termed CLICK (CRISPR with lssDNA inducing conditional knockout alleles), enables the quick generation of floxed alleles in mice and rats. Conclusions: The high efficiency of CLICK provides homozygous knock-ins in oocytes carrying tissue-specific Cre, which allows the one-step generation of conditional knockouts in founder (F0) mice. Electronic supplementary material: The online version of this article (10.1186/s12864-018-4713-y) contains supplementary material, which is available to authorized users.