. "Members of this family are found in prokaryotic Taq DNApolymerase, where they assume a ribonuclease H-like motif. The domain confers 5'-3' exonuclease activity to the polymerase [1]. " . "Taq-exonuc" . "Taq polymerase, exonuclease" . "Sammut SJ" . "Domain" . . . . . . .