Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells

Clonal cell lines stably expressing a protein of interest are frequently used in the characterization of the potential physiological functions of mammalian proteins, but the generation of such cell lines is laborious and time-consuming. Here, we made use of the fact that fusion proteins consisting o...

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Main Authors: Konstantin Matentzoglu, Martin Scheffner
Format: Article
Language:English
Published: Taylor & Francis Group 2009-01-01
Series:BioTechniques
Online Access:https://www.future-science.com/doi/10.2144/000113023
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author Konstantin Matentzoglu
Martin Scheffner
author_facet Konstantin Matentzoglu
Martin Scheffner
author_sort Konstantin Matentzoglu
collection DOAJ
description Clonal cell lines stably expressing a protein of interest are frequently used in the characterization of the potential physiological functions of mammalian proteins, but the generation of such cell lines is laborious and time-consuming. Here, we made use of the fact that fusion proteins consisting of ubiquitin linked to the N terminus of a protein of interest are efficiently processed by ubiquitin-specific proteases into their respective free proteins within eukaryotic cells, and designed an expression system that allows easy and highly efficient selection of mammalian cells ectopically expressing a protein of interest.
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1940-9818
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spelling doaj-art-0dba9515f1d1450790219338e03b0c8a2025-08-20T02:26:02ZengTaylor & Francis GroupBioTechniques0736-62051940-98182009-01-01461212810.2144/000113023Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cellsKonstantin Matentzoglu0Martin Scheffner11University of Konstanz, Konstanz, Germany1University of Konstanz, Konstanz, GermanyClonal cell lines stably expressing a protein of interest are frequently used in the characterization of the potential physiological functions of mammalian proteins, but the generation of such cell lines is laborious and time-consuming. Here, we made use of the fact that fusion proteins consisting of ubiquitin linked to the N terminus of a protein of interest are efficiently processed by ubiquitin-specific proteases into their respective free proteins within eukaryotic cells, and designed an expression system that allows easy and highly efficient selection of mammalian cells ectopically expressing a protein of interest.https://www.future-science.com/doi/10.2144/000113023
spellingShingle Konstantin Matentzoglu
Martin Scheffner
Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
BioTechniques
title Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
title_full Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
title_fullStr Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
title_full_unstemmed Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
title_short Ubiquitin-fusion protein system: a powerful tool for ectopic protein expression in mammalian cells
title_sort ubiquitin fusion protein system a powerful tool for ectopic protein expression in mammalian cells
url https://www.future-science.com/doi/10.2144/000113023
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AT martinscheffner ubiquitinfusionproteinsystemapowerfultoolforectopicproteinexpressioninmammaliancells