The Gao_hhe 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=10.1093/nar/gkad317}. It contains a predicted helicase and a Vsr (very short patch repair) endonuclease domain :ref{doi=10.1093/nar/gkad317,10.1128/jvi.00599-23}.
## Molecular mechanisms
As far as we are aware, the molecular mechanism is unknown.
## Example of genomic structure
The Gao_Hhe system is composed of one protein: HheA.