locus-tag	class	description
FDH21_gp020	COG0462	Involved in the biosynthesis of the central metabolite phospho-alpha-D-ribosyl-1-pyrophosphate (PRPP) via the transfer of pyrophosphoryl group from ATP to 1-hydroxyl of ribose-5-phosphate (Rib-5-P)
FDH21_gp032	COG2131	deaminase
FDH21_gp093	COG0209	Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides
FDH21_gp168	COG0338	D12 class N6 adenine-specific DNA methyltransferase