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- W4376132395 abstract "Abstract Modern cells are complex chemical compartments tightly regulated by an underlying DNA-encoded program. Achieving a form of coupling between molecular content, chemical reactions, and chassis in synthetic compartments represents a key step to the assembly of evolvable protocells but remains challenging. Here, we design coacervate droplets that promote non-enzymatic oligonucleotide polymerization and that restructure as a result of the reaction dynamics. More specifically, we rationally exploit complexation between end-reactive oligonucleotides able to stack into long physical polymers and a cationic azobenzene photoswitch to produce three different phases—soft solids, liquid crystalline or isotropic coacervates droplets—each of them having a different impact on the reaction efficiency. Dynamical modulation of coacervate assembly and dissolution via trans - cis azobenzene photo-isomerization is used to demonstrate cycles of light-actuated oligonucleotide ligation. Remarkably, changes in the population of polynucleotides during polymerization induce phase transitions due to length-based DNA self-sorting to produce multiphase coacervates. Overall, by combining a tight reaction-structure coupling and environmental responsiveness, our reactive coacervates provide a general route to the non-enzymatic synthesis of polynucleotides and pave the way to the emergence of a primitive compartment-content coupling in membrane-free protocells." @default.
- W4376132395 created "2023-05-12" @default.
- W4376132395 creator A5003098269 @default.
- W4376132395 creator A5076586811 @default.
- W4376132395 date "2023-05-09" @default.
- W4376132395 modified "2023-10-14" @default.
- W4376132395 title "Non-enzymatic oligonucleotide ligation in coacervate protocells sustains compartment-content coupling" @default.
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- W4376132395 doi "https://doi.org/10.1038/s41467-023-38163-8" @default.
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