| AD families | AD genes | Defense system | CLAN ID | Phages/MGEs | References | Description |
|---|---|---|---|---|---|---|
| APIS027 | DSAD1 | defence-associated sirtuin (DSR) | CLAN026 | SPbeta phages of B. subtilis | PMID:36192536 | DSAD1 is a phage anti-DSR2 protein that binds and inhibits Defence-associated sirtuins (DSR2). In bacteria, N-terminal sirtuin (SIR2) domains within DSR2 were shown to participate in defence systems including prokaryotic argonautes (pAgo), Thoeris, AVAST, defence-associated sirtuin (DSR), etc. |