First Author | Fernández-Chacón M | Year | 2019 |
Journal | Nat Commun | Volume | 10 |
Issue | 1 | Pages | 2262 |
PubMed ID | 31118412 | Mgi Jnum | J:278452 |
Mgi Id | MGI:6323688 | Doi | 10.1038/s41467-019-10239-4 |
Citation | Fernandez-Chacon M, et al. (2019) iSuRe-Cre is a genetic tool to reliably induce and report Cre-dependent genetic modifications. Nat Commun 10(1):2262 |
abstractText | Most biomedical research aimed at understanding gene function uses the Cre-Lox system, which consists of the Cre recombinase-dependent deletion of genes containing LoxP sites. This system enables conditional genetic modifications because the expression and activity of the recombinase Cre/CreERT2 can be regulated in space by tissue-specific promoters and in time by the ligand tamoxifen. Since the precise Cre-Lox recombination event is invisible, methods were developed to report Cre activity and are widely used. However, numerous studies have shown that expression of a given Cre activity reporter cannot be assumed to indicate deletion of other LoxP-flanked genes of interest. Here, we report the generation of an inducible dual reporter-Cre mouse allele, iSuRe-Cre. By significantly increasing Cre activity in reporter-expressing cells, iSuRe-Cre provides certainty that these cells have completely recombined floxed alleles. This genetic tool increases the ease, efficiency, and reliability of conditional mutagenesis and gene function analysis. |