title: Direct participation of lexA protein in repression of colicin E1 synthesis.
abstract: Spontaneous colicin E1 production by plasmid RSF2124 in a recA lexA(spr) strain of Escherichia coli was about 10-fold greater than that observed in a wild-type strain. The synthesis was repressed nearly to the level of a recA strain in the presence of the plasmid pMCR551, which carries the lexA gene.
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics / Q000502:physiology*; D003086:Bacteriocin Plasmids; D003087:Colicins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism*; D005786:Gene Expression Regulation; D005798:Genes, Bacterial; D011938:Rec A Recombinases; D012697:Serine Endopeptidases; D000099160:LexA Repressor Protein
chemical_list: D001426:Bacterial Proteins; D003087:Colicins; D011938:Rec A Recombinases; D012697:Serine Endopeptidases; D000099160:LexA Repressor Protein