ArticlebioRxiv : the preprint server for biology2025
Engineering Plasmids with Synthetic Origins of Replication.
Article in bioRxiv : the preprint server for biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
Funding
Abstract
Plasmids remain by far the most common medium for delivering engineered DNA to microorganisms. However, the reliance on natural plasmid replication mechanisms limits their tunability, compatibility, and modularity. Here we refactor the natural pMB1 origin and create plasmids with customizable copy numbers by tuning refactored components. We then create compatible origins that use synthetic RNA regulators to implement independent copy control. We further demonstrate that the synthetic origin of replication (SynORI) can be engineered modularly to respond to various signals, allowing for multiplexed copy-based reporting of environmental signals. Lastly, a library of 6 orthogonal SynORI plasmids is created and co-maintained in E. coli for a week. This work establishes the feasibility of creating plasmids with SynORI that can serve as a new biotechnology for synthetic biology.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.