ArticleMethods in molecular biology (Clifton, N.J.)2021
Substrate Phosphorylation Rates as an In Vivo Measurement of Kinase Activity.
Article in Methods in molecular biology (Clifton, N.J.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Measuring kinase activity in different in vivo contexts is crucial for understanding the mechanism and functions of protein kinases, such as the cyclin-dependent kinases (Cdks) and other cell cycle kinases. Here, I present the rationale and the experimental framework for an alternative approach to measure kinase activity that is based on estimating substrate phosphorylation rates in vivo. The approach presented was first developed for experiments performed to measure Cdk1 activity at different stages of the fission yeast S. pombe's cell cycle [Swaffer et al., Cell 167:1750-1761, 2016]. However, it also affords a more generalizable framework that can be adaptable to other systems and kinases, as long as specific, rapid, and reversible kinase inhibition is possible. Briefly this involves transient and reversible kinase inhibition to dephosphorylate kinase substrates in vivo, followed by quantitative measurements of phosphorylation after inhibition is removed.
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