locus-tag	class	description
G20c_05	COG4974	Belongs to the 'phage' integrase family
G20c_11	COG0258	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
G20c_11	COG0749	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
G20c_22	COG1351	Catalyzes the reductive methylation of 2'-deoxyuridine- 5'-monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor, and NAD(P)H and FADH(2) as the reductant
G20c_30	COG0717	Belongs to the dCTP deaminase family
G20c_54	COG2195	Cleaves the N-terminal amino acid of tripeptides
G20c_91	COG0739	heme binding