Absolute Quantification of TGF-β Signaling Proteins Using Quantitative Western 
Blot

Deng, Difan; Zi, Zhike

doi:10.1007/978-1-0716-2277-3_1

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Absolute Quantification of TGF-β Signaling Proteins Using Quantitative Western Blot

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Zi, Zhike
Cell Signaling Dynamics (Zhike Zi), Independent Junior Research Groups (OWL), Max Planck Institute for Molecular Genetics, Max Planck Society;

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Citation

Deng, D., & Zi, Z. (2022). Absolute Quantification of TGF-β Signaling Proteins Using Quantitative Western Blot. In J. M. Walker (Ed.), Methods in Molecular Biology 2488: TGF-Beta Signaling (pp. 1-12). Totowa, New Jersey: Humana Press.

Cite as: https://hdl.handle.net/21.11116/0000-000A-68BE-C

Abstract

Cell signaling governs the basic functions of cells by molecular interactions that involve of many proteins. The abundance of signaling proteins can directly influence cellular responses to external signal, contributing to cellular heterogeneity. Absolute quantification of proteins is important for modeling and understanding the complex signaling network. Here, we introduce how to measure the amount of TGF-β signaling proteins using quantitative immunoblotting. In addition, we discuss how to convert the measurements of protein abundance to the quantities of absolute molecules per cell. This method is generally applicable to the absolute quantification of other proteins.