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Updated: Jan 21, 2026
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Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation
Published on: October 4, 2024
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Signal integration and information transfer in an allosterically regulated network
Erin M Shockley1, Carol A Rouzer1, Lawrence J Marnett1
11Department of Biochemistry, Vanderbilt University, Nashville, TN 37212 USA.
NPJ Systems Biology and Applications
|July 26, 2019
Summary
Biological networks process multiple signals. Cyclooxygenase-2 (COX-2) integrates signals, showing sensitivity to relative input changes, which impacts information transmission.
Area of Science:
- Systems biology
- Biochemistry
- Information theory
Background:
- Biological reaction networks can process multiple inputs and outputs.
- Cellular environments exhibit dynamic component levels, influencing cell fate.
- Complex networks with variable inputs remain understudied.
Purpose of the Study:
- Investigate signal processing in complex biological networks.
- Analyze cyclooxygenase-2 (COX-2) in response to simultaneous input signals.
- Understand how input concentration variability affects information transmission.
Main Methods:
- Systems biochemistry approach.
- Physiochemical modeling.
- Information theory application.
Main Results:
- Input level changes affect network information transmission.
- Input correlation influences information transmission.
- COX-2 acts as a signal integrator, sensitive to relative input levels.
- Allosteric regulation of COX-2 by substrates is key.
Conclusions:
- COX-2 integrates simultaneous signals effectively.
- Network sensitivity is modulated by input concentration and correlation.
- Understanding complex networks is crucial for cell fate determination.
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