locus-tag	class	description
HOU70_gp42	COG0258	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
HOU70_gp42	COG0749	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
HOU70_gp66	COG0639	Hydrolyzes diadenosine 5',5'''-P1,P4-tetraphosphate to yield ADP