The gene was from contructed E. coli-D. radiodurans shuttle vector,pI3, and trikingly similar to the known plasmid-encoded antirestriction proteins like ArdA.
ADG.17 and its homologs in archaea viruses act as antitoxins to inhibit host toxin Doc. It's the first example of an inhibitor of an archaeal toxin-antitoxin immune system.
