locus-tag	class	description
SEA-BUTTONS_10	PF00182	Chitinase class I
SEA-BUTTONS_43	PF01367	5'-3' exonuclease, C-terminal SAM fold
SEA-BUTTONS_43	PF02739	5'-3' exonuclease, N-terminal resolvase-like domain
SEA-BUTTONS_43	PF00476	DNA polymerase family A
SEA-BUTTONS_43	PF01612	3'-5' exonuclease