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Updated: Apr 16, 2026
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Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
Published on: March 9, 2019
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Compartmentalization of a bistable switch enables memory to cross a feedback-driven transition
Andreas Doncic1, Oguzhan Atay1, Ervin Valk2
1Department of Biology, Stanford University, Stanford, CA 94305, USA.
Cell
|March 14, 2015
Summary
Cells use spatial memory to make better decisions. Spatial organization of cellular switches allows cells to remember past signals, improving future responses.
Area of Science:
- Cellular biology
- Systems biology
- Biophysics
Background:
- Cells integrate present signals with past dynamics for accurate decision-making.
- Positive feedback loops drive rapid, switch-like cellular transitions.
- Existing models of network motifs often overlook spatial dynamics.
Purpose of the Study:
- To investigate how spatial organization influences signal processing in cellular networks.
- To demonstrate the role of spatial dynamics in memory transmission across cellular transitions.
- To explore novel functions of well-characterized network motifs in eukaryotic cells.
Main Methods:
- Analysis of the yeast G1/S cell cycle switch.
- Modeling of spatial and temporal dynamics in regulatory networks.
- Investigating the impact of pheromone exposure memory.
Main Results:
- Spatial organization of the yeast G1/S switch facilitates memory transmission.
- Past pheromone exposure memory is retained across the G1/S transition.
- Eukaryotic spatial organization enables new signal processing functions for network motifs.
Conclusions:
- Spatial dynamics are crucial for cellular memory and decision-making.
- The yeast G1/S switch exemplifies how spatial organization enhances network motif function.
- Eukaryotic cell architecture provides novel mechanisms for signal processing.
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