Western Blot
Positive WB detected in Recombinant protein
All lanes: lexA antibody at 3.4μg/ml
Secondary
Goat polyclonal to rabbit IgG at 1/50000 dilution
predicted band size: 39 kDa
observed band size: 39 kDa
The LexA antibody is prepared through the immunization of rabbits with the peptide corresponding to amino acids 1-202 of the recombinant E.coli LexA repressor protein and further purification from rabbit antiserum by protein G. It is a polyclonal antibody and exists as an unconjugated IgG. Its purity reaches up to 95%. It only reacts with the LexA protein of E.coli-origin. And this anti-LexA antibody has been validated for use in ELISA and WB analyses. In E.coli, the transcriptional repressor LexA controls the SOS response, which is a coordinated cellular response to DNA damage. The LexA protein inhibits gene expression by binding as a dimer to a 16-mer consensus sequence CTG-N10-CAG named SOS boxes.
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
貨期:
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. Binds to the 16 bp palindromic sequence 5'-CTGTATATATATACAG-3'. 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. Implicated in hydroxy radical-mediated cell death induced by hydroxyurea treatment.The SOS response controls an apoptotic-like death (ALD) induced (in the absence of the mazE-mazF toxin-antitoxin module) in response to DNA damaging agents that is mediated by RecA and LexA.
基因功能參考文獻:
The conformational flexibility of unbound LexA is the key element in establishing a co-ordinated SOS response. PMID: 21576225
LexA regulated genes exhibit phenotypic heterogeneity as high level expression is observed in only a small subpopulation. PMID: 21070632
NMR analysis of LexA catalytic domain in its active conformation PMID: 15929009
oligomerization of LexA is proposed to be a possible regulation mechanism of the Escherichia coli SOS regulon in response to environmental conditions resulting in acidic intracellular pH. Structural changes on LexA repressor promoted by acidic pH. PMID: 16701697
LexA binds to and represses the promoter of antC of coliphage N15. PMID: 17586637