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Updated: Jul 19, 2026

An Optimized Single-Molecule Pull-Down Assay for Quantification of Protein Phosphorylation
Published on: June 6, 2022
Simulation and sensitivity analysis of phosphorylation of EGFR signal transduction pathway in PC12 cell model
C V Suresh Babu1, S Yoon, H S Nam
1Bioanalysis and Biotransformation Research Center, Korea Institute of Science and Technology, Cheongryang, Seoul.
Abstract:
The epidermal growth factor receptor (EGFR) signalling pathway is a complex signalling process with a wide network of interactions. The activation of the mitogen-activated protein kinases (MAPKs) cascade by this activated EGFR has been well studied. MAPKs form a highly integrated network, which is essential for certain specialised cell functions. This paper presents a kinetic model for the MAPK pathway downstream of the EGFR using a biochemical simulator. The model includes 30 signalling events and 29 signalling molecules. The time course data were examined for the activation of each signalling component. The simulation provides a large volume of data, by monitoring the kinetics of the signalling components, which were compared experimentally using the PC12 cell line. The kinetic model corresponded well with the experimental results observed in the EGFR induced activation of proteins. An examination of the kinetic analysis of the multiple signalling events provides a quantitative framework for representing the EGFR signalling network.
Insights
This study presents a kinetic model of the mitogen-activated protein kinases (MAPKs) pathway activated by epidermal growth factor receptor (EGFR). The model accurately reflects experimental data, offering a quantitative framework for EGFR signaling.
Area of Science:
- Cellular signaling
- Biochemical kinetics
- Systems biology
Background:
- The epidermal growth factor receptor (EGFR) pathway activates the mitogen-activated protein kinases (MAPKs) cascade, crucial for cell function.
- Understanding the complex interactions within the MAPK network is essential.
Purpose of the Study:
- To develop a kinetic model of the MAPK pathway downstream of EGFR.
- To quantitatively analyze EGFR-induced signaling events.
Main Methods:
- Utilized a biochemical simulator to construct a kinetic model.
- The model incorporates 30 signaling events and 29 molecules.
- Compared simulation time-course data with experimental results from PC12 cells.
Main Results:
- The kinetic model accurately predicted EGFR-induced protein activation.
- Simulations provided extensive data on signaling component kinetics.
- Model predictions showed good correspondence with experimental observations.
Conclusions:
- The developed kinetic model provides a quantitative framework for the EGFR signaling network.
- This approach allows for detailed analysis of signaling pathway dynamics.
- The study validates the model's accuracy through experimental comparison.
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