locus-tag	class	description
7S4_19	COG1961	COG1961 Site-specific recombinases, DNA invertase Pin homologs
7S4_20	COG1974	Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair