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Evaluation of Substrate Ubiquitylation by E3 Ubiquitin-ligase in Mammalian Cell Lysates
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May 10, 2022
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We provide a detailed protocol for a ubiquitylation assay of a specific substrate and an E3 ubiquitin-ligase in mammalian cells. HEK293T cell lines were used for protein overexpression, the polyubiquitylated substrate was purified from cell lysates by immunoprecipitation, and resolved in SDS-PAGE. Immunoblotting was used to visualize this post-translational modification.
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Keyword Extraction:Substrate UbiquitylationE3 LigaseMammalian Cell LysatesImmunoprecipitation AssayWestern BlotHuman DiseasesCancerNeurological DisordersE3 Ligase DysregulationHEK293T Cell LineDulbecco’s Modified Eagles MediumFetal Bovine SerumPenicillinStreptomycinL-glutamineTrypsin EDTAPolyethyleneimineOpti-MEM 1 Reduced Serum MediumTransient Transfections
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dos Passos, P. M. S., Spagnol, V., de Correia, C. R., Teixeira, F. R. Evaluation of Substrate Ubiquitylation by E3 Ubiquitin-ligase in Mammalian Cell Lysates. J. Vis. Exp. (183), e63561, doi:10.3791/63561 (2022).
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