%0 Journal Article %T Toprim—a conserved catalytic domain in type IA and II topoisomerases, DnaG-type primases, OLD family nucleases and RecR proteins %A Aravind, L. %A Leipe, Detlef D. %A Koonin, Eugene V. %J Nucleic Acids Research %V 26 %N 18 %P 4205-4213 %@ 0305-1048 %D 1998-09-01 %I Oxford University Press %~ DeepDyve