Fluorescent fusion protein knockout mediated by anti-GFP nanobody
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- 11 December 2011
- journal article
- Published by Springer Science and Business Media LLC in Nature Structural & Molecular Biology
- Vol. 19 (1), 117-121
- https://doi.org/10.1038/nsmb.2180
Abstract
The use of genetic mutations to study protein functions in vivo is a central paradigm of modern biology. Recent advances in reverse genetics such as RNA interference and morpholinos are widely used to further apply this paradigm. Nevertheless, such systems act upstream of the proteic level, and protein depletion depends on the turnover rate of the existing target proteins. Here we present deGradFP, a genetically encoded method for direct and fast depletion of target green fluorescent protein (GFP) fusions in any eukaryotic genetic system. This method is universal because it relies on an evolutionarily highly conserved eukaryotic function, the ubiquitin pathway. It is traceable, because the GFP tag can be used to monitor the protein knockout. In many cases, it is a ready-to-use solution, as GFP protein-trap stock collections are being generated in Drosophila melanogaster and in Danio rerio.Keywords
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