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De Novo-Designed Enzymes as Small-Molecule-Regulated Fluorescence Imaging Tags and Fluorescent Reporters
The Scripps Research Institute, USA.
The Scripps Research Institute, USA.
The Scripps Research Institute, USA.
University of California, USA.
Show others and affiliations
2014 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 136, no 38, 13102-13105 p.Article in journal (Refereed) Published
Abstract [en]

Enzyme-based tags attached to a protein-of-interest (POI) that react with a small molecule, rendering the conjugate fluorescent, are very useful for studying the POI in living cells. These tags are typically based on endogenous enzymes, so protein engineering is required to ensure that the small-molecule probe does not react with the endogenous enzyme in the cell of interest. Here we demonstrate that de novo-designed enzymes can be used as tags to attach to POIs. The inherent bioorthogonality of the de novo-designed enzyme-small-molecule probe reaction circumvents the need for protein engineering, since these enzyme activities are not present in living organisms. Herein, we transform a family of de novo-designed retroaldolases into variable-molecular-weight tags exhibiting fluorescence imaging, reporter, and electrophoresis applications that are regulated by tailored, reactive small-molecule fluorophores.

Place, publisher, year, edition, pages
2014. Vol. 136, no 38, 13102-13105 p.
National Category
Biochemistry and Molecular Biology
Research subject
Chemistry, Biochemistry
Identifiers
URN: urn:nbn:se:lnu:diva-50606DOI: 10.1021/ja5056356PubMedID: 25209927OAI: oai:DiVA.org:lnu-50606DiVA: diva2:911190
Available from: 2016-03-11 Created: 2016-03-11 Last updated: 2016-03-29Bibliographically approved

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Bjelic, Sinisa
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