Cre stoplight : a red/green fluorescent reporter of Cre recombinase expression in living cells

The Cre/lox system is a powerful genetic tool with which to manipulate the genome. Here, we describe the development of a simple reporter system for Cre recombinase, called the Cre Stoplight. In the absence of Cre, the red fluorescent protein is expressed; when Cre catalyzes a recombination event, t...

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Veröffentlicht in:BioTechniques. - 1993. - 31(2001), 5 vom: 16. Nov., Seite 1036, 1038, 1040-1
1. Verfasser: Yang, Y S (VerfasserIn)
Weitere Verfasser: Hughes, T E
Format: Aufsatz
Sprache:English
Veröffentlicht: 2001
Zugriff auf das übergeordnete Werk:BioTechniques
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Luminescent Proteins Viral Proteins fluorescent protein 583 Green Fluorescent Proteins 147336-22-9 Cre recombinase EC 2.7.7.- Integrases
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520 |a The Cre/lox system is a powerful genetic tool with which to manipulate the genome. Here, we describe the development of a simple reporter system for Cre recombinase, called the Cre Stoplight. In the absence of Cre, the red fluorescent protein is expressed; when Cre catalyzes a recombination event, the green fluorescent protein is produced. Testing this system in transiently transfected cells showed that it produced robust signals (90% of the cells converted from red to green) when equal amounts of the plasmids encoding Cre recombinase and the Cre Stoplight were used. A 1:100 ratio of enzyme to reporter plasmid produced similar results, and a 1:10000 ratio was necessary to significantly reduce the number of cells converting to green (1%) 
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650 4 |a Research Support, U.S. Gov't, P.H.S. 
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