locus-tag	class	description
FDI18_gp37	PF01367	5'-3' exonuclease, C-terminal SAM fold
FDI18_gp37	PF02739	5'-3' exonuclease, N-terminal resolvase-like domain
FDI18_gp37	PF00476	DNA polymerase family A
FDI18_gp37	PF09281	Taq polymerase, exonuclease