The Gao_upx system is composed by a single protein. It was predicted through a guilty by association approach independent of domain annotations and validated in a heterologous system :ref{doi=10.1126/science.aba0372}. It's been identified as part of a highly conserved core defense hotspot in *Pseudomonas aeruginosa* strains :ref{doi=10.1093/nar/gkad317}.
## Molecular mechanisms
As far as we are aware, the molecular mechanism is unknown.
## Example of genomic structure
## Example of genomic structure
The Gao_Upx system is composed of one protein: UpxA.
The Gao_Upx system is composed of one protein: UpxA.