Creating a Genetic Memory Switch Using Inversion Recombination
Author Information
Author(s): Ham Timothy S., Lee Sung K., Keasling Jay D., Arkin Adam P.
Primary Institution: University of California, Berkeley
Hypothesis
Can inversion recombination systems be used to create a heritable sequential memory switch in DNA?
Conclusion
A heritable memory system that encodes its state into DNA is possible, demonstrating the feasibility of a multi-state, temporal memory switch.
Supporting Evidence
- The switch can transition between multiple states without requiring protein expression.
- The system can remember its state even after cell death.
- Three out of five possible states were demonstrated in the experiments.
Takeaway
Scientists built a special switch that can remember things by changing its DNA, even after the cell dies. This switch can change between different states like a light switch.
Methodology
The study involved designing and synthesizing an inversion switch using fim and hin recombination systems to create a heritable memory switch capable of multiple states.
Limitations
The circuit did not fully behave as expected, and the efficiency of the fim inversion was lower than anticipated.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website