Rst_DUF4238 is a single gene system found in a screen of phage and phage-satellites antiviral hotspots :ref{doi=10.1016/j.chom.2022.02.018}. It was shown to provide E.coli with a strong resistance against phage T7.
## Molecular mechanism
As far as we are aware, the molecular mechanism is unknown.
## Example of genomic structure
The Rst_DUF4238 is composed of 1 protein: DUF4238.