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Author Spotlight: Developing Synthetic Cells from Programmable Amphiphilic DNA Nanostructures
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747
Acyl Phosphates as Chemically Fueled Building Blocks for Self-Sustaining Protocells
Oleksii Zozulia1, Christine M E Kriebisch1, Brigitte A K Kriebisch1
1Department of Bioscience School of Natural Sciences, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
Angewandte Chemie (International Ed. in English)
|May 14, 2024
Summary
Researchers developed self-sustaining protocells using non-equilibrium chemistry. These lipid vesicles require activating agents, mimicking early life conditions and enabling resource competition for synthetic cell development.
Area of Science:
- Origin of life studies
- Synthetic biology
- Biochemistry
Background:
- Lipid vesicles form compartments essential for simple life and protocell models.
- Existing protocell models are typically near thermodynamic equilibrium, unlike living systems.
- Life requires non-equilibrium conditions to sustain itself.
Purpose of the Study:
- To investigate vesicle-based compartments regulated by non-equilibrium chemical reactions.
- To explore the potential for prebiotically plausible, self-sustainable protocells.
- To establish a chemical system capable of resource competition.
Main Methods:
- Studied vesicle formation using a chemical reaction network.
- Utilized activating agents to condense precursors into acyl phosphate lipids.
- Investigated vesicle stability under conditions with and without activating agents.
Main Results:
- Demonstrated that vesicles can be sustained by a non-equilibrium chemical network.
- Showed that the reaction network can utilize prebiotic activating agents.
- Established that these protocell compartments require a continuous supply of activating agents.
Conclusions:
- Developed a model for self-sustainable protocells operating out of equilibrium.
- Opened possibilities for prebiotically plausible protocells that compete for resources.
- Laid groundwork for future protocell development with genetic material for Darwinian evolution.
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