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Combinatorial Strategy for Studying Biochemical Pathways in Double Emulsion Templated Cell-Sized Compartments
Elena C Dos Santos1, Andrea Belluati1, Danut Necula1
1Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, 4002, Basel, Switzerland.
Advanced Materials (Deerfield Beach, Fla.)
|October 27, 2020
Summary
Researchers developed synthetic cell-sized compartments to study enzyme function in complex pathways. This method optimizes enzyme activity and efficiency by controlling enzyme and metabolite combinations within compartments.
Area of Science:
- Synthetic biology
- Biochemistry
- Chemical engineering
Background:
- Cellular functions depend on precise enzyme production rates and stoichiometry.
- Interconnectivity in enzymatic cascades within multi-step pathways obscures optimal control mechanisms.
Purpose of the Study:
- To develop a novel strategy for studying enzyme behavior in complex pathways.
- To investigate optimal control of enzyme rates and stoichiometry in synthetic compartments.
Main Methods:
- Utilized high-precision double-emulsion microfluidics to create polymer giant unilamellar vesicles (GUVs).
- Achieved high encapsulation and co-encapsulation efficiencies for enzymes and metabolites.
- Reconstituted biopores and membrane proteins into GUVs for in situ reactions.
Main Results:
- Demonstrated precise control over absolute and relative enzymatic contents within GUVs.
- Enabled the study of a three-step cascade in multiple topologies using GUVs.
- Identified optimal conditions for reducing inhibitor accumulation and maximizing cascade efficiency.
Conclusions:
- The novel strategy allows for spatiotemporal control of enzymatic reactions in synthetic compartments.
- This system is versatile for developing new synthetic routes and screening complex biological pathways.
