E. coli LexA (full length), recombinant protein from E. coli
E. coli LexA full length protein
> 90 % by SDS-PAGE.highly purified by several steps of chromatography
Preservative: None Constituents: 50% Glycerol, 5mM Beta mercaptoethanol, 2mM EDTA, 100mM Sodium chloride, 10mM Tris HCl, pH 7.5
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles. Preservative: None Constituents: 50% Glycerol, 5mM Beta mercaptoethanol, 2mM EDTA, 100mM Sodium chloride, 10mM Tris HCl, pH 7.5
Escherichia coli; commonly abbreviated E. coli) is a gram-negative, facultatively anaerobic, rod-shaped bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harml
E. coli LexA protein inhibits the transcription of the genes belonging to the SOS regulon that are related to DNA repair and cell division by recognizing and binding to the SOS-box sequence (TACTGTATATATATACAGTA). LexA's self-protease activity is promoted by RecA protein which, responding to DNA damage, is activated by its binding to single-strand DNA accumulated in the cells. It is cleaved into two fragments and loses its function as a repressor. As the result, the expression of genes belonging to the SOS regulon is induced, and DNA repair ability and mutagenic activity in the cells are enhanced.
Lex A; LexA repressor; E. coli LexA; Escherichia coli LexA