| AD families | AD genes | Defense system | CLAN ID | Phages/MGEs | References | Description |
|---|---|---|---|---|---|---|
| APIS165 | Ddra | restriction-modification (RM) | CLAN062 | Escherichia phage P1 | PMID:28509398 | It's included in the P1 restriction system. The proteins Hdf, DarA and DdrA are required for the protection of phage DNA from restriction by the EcoA Type I R-M system. |