locus-tag	class	description
HOS57_gp44	PF01367	5'-3' exonuclease, C-terminal SAM fold
HOS57_gp44	PF02739	5'-3' exonuclease, N-terminal resolvase-like domain
HOS57_gp44	PF00476	DNA polymerase family A
HOS57_gp44	PF01612	3'-5' exonuclease