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Reference
Citation
He, L., Binari, R., Huang, J., Falo-Sanjuan, J., Perrimon, N. (2019). In vivo study of gene expression with an enhanced dual-color fluorescent transcriptional timer.  eLife 8(): e46181.
FlyBase ID
FBrf0243058
Publication Type
Research paper
Abstract

Fluorescent transcriptional reporters are widely used as signaling reporters and biomarkers to monitor pathway activities and determine cell type identities. However, a large amount of dynamic information is lost due to the long half-life of the fluorescent proteins. To better detect dynamics, fluorescent transcriptional reporters can be destabilized to shorten their half-lives. However, applications of this approach in vivo are limited due to significant reduction of signal intensities. To overcome this limitation, we enhanced translation of a destabilized fluorescent protein and demonstrate the advantages of this approach by characterizing spatio-temporal changes of transcriptional activities in Drosophila. In addition, by combining a fast-folding destabilized fluorescent protein and a slow-folding long-lived fluorescent protein, we generated a dual-color transcriptional timer that provides spatio-temporal information about signaling pathway activities. Finally, we demonstrate the use of this transcriptional timer to identify new genes with dynamic expression patterns.

PubMed ID
PubMed Central ID
PMC6660218 (PMC) (EuropePMC)
Related Publication(s)
Note

Watching gene expression in color.
Simpson, 2019, eLife 8: e49414 [FBrf0243115]

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Secondary IDs
    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    eLife
    Title
    eLife
    ISBN/ISSN
    2050-084X
    Data From Reference
    Alleles (95)
    Genes (33)
    Cell Lines (2)
    Natural transposons (1)
    Insertions (56)
    Experimental Tools (8)
    Transgenic Constructs (39)