Ubiquitylation

Check whether your protein is ubiquitylated!

11/10/2016 By Ali El Baya, PhD Leave a Comment

Detecting ubiquitylation

Ubitest Flow chart – LifeSensors at tebu-bio.com

Determining the linkage of polyubiquitin on target proteins is challenging. The traditional methods are either through Mass Spectrometry or immunoblot with linkage specific antibodies, which are cumbersome. LifeSensors has developed the UbiTest assay, a more definitive method for demonstrating the ubiquitylation linkage of a protein, which is to couple immunoprecipitation of polyubiquitylated protein with digestion by a linkage specific deubiquitylase prior to immunoblot analysis. An increased signal for the unmodified substrate or a decreased signal of polyubiquitylated substrate at high molecular weight after K48/K63 specific DUB treatment is a clear indication that the protein was K48/K63 ubiquitylated. [Read more…]

Protein post-translational modification analysis

28/04/2016 By Ali El Baya, PhD Leave a Comment

Protein post-translational modifications (PTMs) are part of a complex regulatory network that controls physiological and pathological cellular processes. In this post, new user-friendly assays are introduced to help Life Scientists gain a deeper understanding of these mechanisms involved in protein biology.

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Easily customizable E3-ubiquitin ligase assay kits

08/02/2016 By Ali El Baya, PhD Leave a Comment

A ready-to-use E3 ligase activity enzymatic assay, the E3LITE kit, has been recently designed enabling researchers to screen for E3 enzyme inhibitors and potentially new therapeutical drugs. What’s it for and why is it of interest?

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