CopG antitoxin of type II toxin-antitoxin system
CopG antitoxin is a member of a type II toxin-antitoxin system family found in bacteria and archaea. Most antitoxins encoded by the relBE and parDE loci belong to the MetJ/Arc/CopG family of dimeric proteins which bind DNA through N-terminal ribbon-helix-helix (RHH) motifs. The toxin for CopG proteins falls into the family BrnT_toxin, pfam04365.