Our Anti-5-Lipoxygenase (Ser523) rabbit polyclonal phosphospecific primary antibody from PhosphoSolutions is produced in-house. It detects human, mouse, and rat 5-Lipoxygenase (Ser523) and is antigen affinity purified from pooled serum. It is great for use in WB.
Western blot of rat cortical lysate showing specific immunolabeling of the ~80 kDa doublet of 5-LO phosphorylated at Ser523 in the first lane (-). Phosphospecificity is shown in the second lane (+) where immunolabeling is completely eliminated by blot treatment with lambda phosphatase (λ-Ptase, 1200 units for 30 min).
The enzyme 5-lipoxygenase (5-LO) plays a key role in regulating the production of leukotrienes (LTs) (Funk, 2001). Overproduction of LTs contributes to several diseases, most notably chronic inflammatory diseases, including asthma (Drazen et al., 1994), fibrosis (Wilborn et al., 1996) and atherosclerosis (Dwyer et al., 2004). Recent work has demonstrated that the activity of 5-LO is regulated by PKA phosphorylation of serine-523 in 5-LO (Luo et al., 2004). Under normal conditions, this phosphorylation may be important in limiting inflammation. Abnormal signaling through cAMP and PKA, then, could contribute to a variety of diseases, including those characterized by chronic inflammation. The phospho-specific antibody to Ser523 on 5-LO is thus likely to provide a valuable tool for studies of the role of 5-LO regulation in diseases such as asthma, fibrosis and atherosclerosis.
Antigen Affinity Purified from Pooled Serum
Polyclonal
IgG
WB
Rabbit
ALOX5
80 kDa
Synthetic phosphopeptide corresponding to amino acid residues surrounding Ser523 of human 5-lipoxygenase (5-LO), conjugated to keyhole limpet hemocyanin (KLH).
Human, Mouse, Rat
Non-Human Primate
AB_2492028
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
Liquid
Prepared from pooled rabbit serum by affinity purification via sequential chromatography on phospho and non-phosphopeptide affinity columns.
10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol.
WB: 1:1000
WB Brain: 1:1000
Unconjugated
Specific for endogenous levels of the ~80 kD 5-LO phosphorylated at Ser523 in Western blots. Immunolabeling is completely eliminated by blot treatment with lambda phosphatase (λ-phosphatase, 1200 units for 30 min).
Phosphorylated
Ser523
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
After date of receipt, stable for at least 1 year at -20°C.
Luo, M., et al. 2004. Luo, M., Jones, S.M., Phare, S.M., Coffey, M.J., Peters-Golden, M. and Brock, T.G., 2004. Protein kinase A inhibits leukotriene synthesis by phosphorylation of 5-lipoxygenase on serine 523. Journal of Biological Chemistry, 279(40), pp.41512-41520.
