The Menshen system has been identified by Millman et al. as a three protein system NsnA, NsnB and NsnC. Menshen from *Solibacillus silvestris* StLB046 confers resistance in *E. coli* and *B. subtilis* against some phages :ref{doi=10.1016/j.chom.2022.09.017}.
## Molecular mechanism
As far as we are aware, the molecular mechanism is unknown.
## Example of genomic structure
The Menshen system is composed of 3 proteins: NsnA, NsnB and, NsnC_2623244837.