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Genetically encoded betaxanthin-based small-molecular fluorescent reporter for mammalian cells

Stücheli, Pascal; Sieber, Simon; Fuchs, David W; Scheller, Leo; Strittmatter, Tobias; Saxena, Pratik; Gademann, Karl; Fussenegger, Martin (2020). Genetically encoded betaxanthin-based small-molecular fluorescent reporter for mammalian cells. Nucleic Acids Research, 48(12):e67-e67.

Abstract

We designed and engineered a dye production cassette encoding a heterologous pathway, including human tyrosine hydroxylase and Amanita muscaria 4,5-DOPA dioxygenase, for the biosynthesis of the betaxanthin family of plant and fungal pigments in mammalian cells. The system does not impair cell viability, and can be used as a non-protein reporter system to directly visualize the dynamics of gene expression by profiling absorbance or fluorescence in the supernatant of cell cultures, as well as for fluorescence labeling of individual cells. Pigment profiling can also be multiplexed with reporter proteins such as mCherry or the human model glycoprotein SEAP (secreted alkaline phosphatase). Furthermore, absorbance measurement with a smartphone camera using standard application software enables inexpensive, low-tech reporter quantification.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Life Sciences > Genetics
Uncontrolled Keywords:Genetics
Language:English
Date:9 July 2020
Deposited On:20 Jan 2021 06:11
Last Modified:23 Jun 2025 02:06
Publisher:Oxford University Press
ISSN:0305-1048
OA Status:Gold
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.1093/nar/gkaa342
PubMed ID:32421771
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