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A rationally engineered decoder of transient intracellular signals
Claude Lormeau1,2, Fabian Rudolf1, Jörg Stelling3
1Department of Biosystems Science and Engineering and SIB Swiss Institute of Bioinformatics, ETH Zurich, Mattenstrasse 26, CH 4058, Basel, Switzerland.
Nature Communications
|March 26, 2021
Summary
Scientists engineered a synthetic circuit in yeast to decode transient signals. This circuit uses incoherent feedforward and positive feedback, revealing new principles for cellular information processing.
Area of Science:
- Synthetic biology
- Cellular dynamics
- Systems biology
Background:
- Cells process environmental information through signaling dynamics.
- Mechanisms for decoding transient signals remain largely unknown.
- Understanding transient signal decoding is crucial for cellular computation.
Purpose of the Study:
- To uncover design principles for decoding transient cellular signals.
- To engineer a synthetic short-pulse decoder in budding yeast.
- To explore computational methods for rapid circuit prototyping.
Main Methods:
- Utilized a computational method called TopoDesign for circuit architecture exploration.
- Designed and implemented a synthetic circuit in budding yeast.
- Investigated the roles of incoherent feedforward and positive feedback in signal decoding.
Main Results:
- Successfully engineered a synthetic circuit capable of short-pulse decoding.
- Demonstrated that incoherent feedforward is essential for transient signal decoding.
- The engineered circuit complements existing principles of temporal filtering.
Conclusions:
- Incoherent feedforward is a key mechanism for decoding transient signals.
- TopoDesign facilitates the design of synthetic circuits with complex dynamics.
- This work provides insights into cellular information processing and synthetic circuit design.
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