locus-tag	class	description
PHAGE_BARTON_26	COG0553	Transcription regulator that activates transcription by stimulating RNA polymerase (RNAP) recycling in case of stress conditions such as supercoiled DNA or high salt concentrations. Probably acts by releasing the RNAP, when it is trapped or immobilized on tightly supercoiled DNA. Does not activate transcription on linear DNA. Probably not involved in DNA repair
PHAGE_BARTON_34	COG0258	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
PHAGE_BARTON_34	COG0749	In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity
PHAGE_BARTON_36	COG0104	Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP