locus-tag	class	description
HOR34_gp18	PF01367	5'-3' exonuclease, C-terminal SAM fold
HOR34_gp18	PF02739	5'-3' exonuclease, N-terminal resolvase-like domain
HOR34_gp18	PF00476	DNA polymerase family A
HOR34_gp18	PF09281	Taq polymerase, exonuclease