locus-tag	class	description
XO27_0002	COG1802	Transcriptional regulator
XO27_0002	COG4626	Terminase
XO27_0003	COG4695	Portal protein
XO27_0004	COG0740	serine-type endopeptidase activity
XO27_0015	COG4974	Belongs to the 'phage' integrase family
XO27_0024	COG1674	ftsk spoiiie
XO27_0028	COG0582	viral genome integration into host DNA
XO27_0042	COG1846	Transcriptional regulator
XO27_0043	COG0593	it binds specifically double-stranded DNA at a 9 bp consensus (dnaA box) 5'-TTATC CA A CA A-3'. DnaA binds to ATP and to acidic phospholipids
XO27_0055	COG0582	viral genome integration into host DNA