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Updated: Nov 11, 2025

Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
Published on: April 6, 2022
Protocol for intervention-free quantification of protein turnover rate by steady-state modeling
Stefania Marcotti1, Besaiz Jose Sánchez-Sánchez1, Eduardo Serna-Morales1
1Randall Centre for Cell and Molecular Biophysics, King's College London, London SE1 1UL, UK.
Abstract:
Protein turnover rate is difficult to obtain experimentally. This protocol shows how to mathematically model turnover rates in an intervention-free manner given the ability to quantify mRNA and protein expression from initiation to homeostasis. This approach can be used to calculate production and degradation rates and to infer protein half-life. This model was successfully employed to quantify turnover during Drosophila embryogenesis, and we hypothesize that it will be applicable to diverse in vivo or in vitro systems. For complete details on the use and execution of this protocol, please refer to Matsubayashi et al. (2020).

