locus-tag	class	description
RIVERRIDER_40	PF01367	5'-3' exonuclease, C-terminal SAM fold
RIVERRIDER_40	PF02739	5'-3' exonuclease, N-terminal resolvase-like domain
RIVERRIDER_40	PF00476	DNA polymerase family A
RIVERRIDER_40	PF09281	Taq polymerase, exonuclease
RIVERRIDER_42	PF13538	UvrD-like helicase C-terminal domain
RIVERRIDER_65	PF00692	dUTPase