Z/EG, a double reporter mouse line that expresses enhanced green fluorescent protein upon cre-mediated excision
Article first published online: 16 NOV 2000
Copyright © 2000 Wiley-Liss, Inc.
Volume 28, Issue 3-4, pages 147–155, November - December 2000
How to Cite
Novak, A., Guo, C., Yang, W., Nagy, A. and Lobe, C. G. (2000), Z/EG, a double reporter mouse line that expresses enhanced green fluorescent protein upon cre-mediated excision. Genesis, 28: 147–155. doi: 10.1002/1526-968X(200011/12)28:3/4<147::AID-GENE90>3.0.CO;2-G
- Issue published online: 16 NOV 2000
- Article first published online: 16 NOV 2000
- Manuscript Accepted: 28 SEP 2000
- Manuscript Received: 19 SEP 2000
- Medical Research Council of Canada
- transgenic mice;
- conditional gene expression;
- enhanced green fluorescent protein
Summary: The Cre/loxP system has become an important tool in designing postintegrational switch mechanisms for transgenes in mice. The power and spectrum of application of this system depends on transgenic mouse lines that provide Cre recombinase activity with a defined cell type-, tissue-, or developmental stage-specificity. We have developed a novel mouse line that acts as a Cre reporter. The mice, designated Z/EG (lacZ/EGFP), express lacZ throughout embryonic development and adult stages. Cre excision, however, removes the lacZ gene, which activates expression of the second reporter, enhanced green fluorescent protein. We have found that the double-reporter Z/EG line is able to indicate the occurrence of Cre excision from early embryonic to adult lineages. The advantage of the Z/EG line is that Cre-mediated excision can be monitored in live samples and that live cells with Cre-mediated excision can be isolated using a single-step FACS. It will be a valuable reagent for the increasing number of investigators taking advantage of the powerful tools provided by the Cre/loxP site-specific recombinase system. genesis 28:147–155, 2000. © 2000 Wiley-Liss, Inc.