Supporting conditional mouse mutagenesis with a comprehensive cre characterization resource.

Supporting conditional mouse mutagenesis with a comprehensive cre characterization resource.
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DOI:
10.1038/ncomms2186
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发表时间:
2012
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
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--
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由国际敲除小鼠联盟产生的loxP侧翼等位基因的价值的完全实现将需要大量充分表征的cre-驱动系。然而,许多cre驱动细胞系显示出超出预期组织或细胞类型的切除活性,并且这些数据对于潜在用户来说通常是不可用的。在这里,我们描述了一个高通量的管道来扩展cre驱动线的表征,以记录在多个时间点在广泛组织中的切除活性,并将这些数据传播给科学界。我们的研究结果表明,大多数cre菌株表现出一定程度的重组酶活性的未报告。此外,我们观察到频繁的镶嵌,不一致的活动和原产地的父母的影响。总之,这些结果强调了深入表征cre菌株的重要性,并为科学界提供了cre菌株信息的关键资源。cre-loxP系统广泛用于产生条件性基因敲除。在这里,Heffner等人系统地描述了胚胎和成年cre-driver小鼠品系组织中cre重组酶的活性,并为科学家提供了在线资源。
Full realization of the value of the loxP-flanked alleles generated by the International Knockout Mouse Consortium will require a large set of well-characterized cre-driver lines. However, many cre driver lines display excision activity beyond the intended tissue or cell type, and these data are frequently unavailable to the potential user. Here we describe a high-throughput pipeline to extend characterization of cre driver lines to document excision activity in a wide range of tissues at multiple time points and disseminate these data to the scientific community. Our results show that the majority of cre strains exhibit some degree of unreported recombinase activity. In addition, we observe frequent mosaicism, inconsistent activity and parent-of-origin effects. Together, these results highlight the importance of deep characterization of cre strains, and provide the scientific community with a critical resource for cre strain information. The cre-loxP system is widely used for the generation of conditional gene knockouts. Here Heffner et al. systematically characterize cre recombinase activity in tissues of embryonic and adult cre-driver mouse strains and provide an online resource for scientists.
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