Phospho-Ser523 5-Lipoxygenase Antibody
Affinity purified rabbit polyclonal antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| WB |
---|---|
Primary Accession | P09917 |
Reactivity | Human, Rat |
Predicted | Monkey |
Host | Rabbit |
Clonality | polyclonal |
Calculated MW | 80 KDa |
Gene ID | 240 |
---|---|
Gene Name | ALOX5 |
Other Names | Arachidonate 5-lipoxygenase, 5-LO, 5-lipoxygenase, ALOX5, LOG5 |
Target/Specificity | Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser523 conjugated to KLH. |
Dilution | WB~~ 1:1000 |
Format | Prepared from rabbit serum by affinity purification via sequential chromatography on phospho- and dephosphopeptide affinity columns. |
Antibody Specificity | Specific for the ~80k 5-LO phosphorylated at Ser523 in Western blots |
Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
Precautions | Phospho-Ser523 5-Lipoxygenase Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
Shipping | Blue Ice |

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Provided below are standard protocols that you may find useful for product applications.
Background
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
References
Drazen JM, Lilly CM, Sperling R, Rubin P, Israel E (1994) Role of cysteinyl leukotrienes in spontaneous asthmatic responses. Adv. Prostaglandin Thromboxane Leukot Res 22:251-262.
Dwyer JH, Allayee H, Dwyer KM, Fan J, Wu H, Mar R, Lusis AJ, Mehrabian M (2004) Arachidonate 5-lipoxygenase promoter genotype, dietary arachidonic acid, and atherosclerosis. New England J Med 350:29-37.
Funk, CD (2001) Prostaglandins and leukotrienes: advances in eicosanoid biology. Science 294:1871-1875.
Luo M, Jones SM, Phare SM, Coffey MJ, Peters-Golden M, Brock TG (2004) Protein kinase A inhibits leukotriene synthesis by phosphorylation of 5-lipoxygenase on Serine 523. J Biol Chem 279:41,512-41,520.
Wilborn J, Bailie M, Coffey M, Burdick M, Strieter R, Peters-Golden M. (1996) Constitutive activation of 5-lipoxygenase in the lungs of patients with idiopathic pulmonary fibrosis. J Clin Invest 97:1827-1836.
Luo M, Jones SM, Phare SM, Coffey MJ, Peters-Golden M, Brock TG.(2004) Protein kinase A inhibits leukotriene synthesis by phosphorylation of 5-lipoxygenase on serine 523. J Biol Chem. 279(40):41512-20. Epub 2004 Jul 26.

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