ARP240P-31 [Polyclonal Antibody]
Phospho-ALOX5-Ser271 Rabbit Polyclonal Antibody
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Species:   Rabbit
Applications:   WB
Immunogen Range:   A synthetic phosphopeptide corresponding to residues surrounding Ser271 of human 5-lipoxygenase protein
Clonality:   Polyclonal Antibody
Isotype:   /
GENE ID:   240
Swiss Prot:   P09917
Synonyms:   5-LO, 5-LOX, 5LPG, LOG5, MGC163204
Purification:   Affinity purification
Storage:   Store at -20°C in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Avoid freeze/thaw cycles.
Background:   5-Lipoxygenase (5-LO, ALOX5) is an important catalytic enzyme responsible for the biosynthesis of leukotriene LTA4 from arachidonic acid (1,2). Leukotriene synthesis also requires 5-lipoxygenase-activating protein (FLAP, ALOX5AP), a nuclear membrane-bound protein that binds arachidonic acid and is thought to activate 5-LO. A number of related leukotrienes (i.e. B4, C4, D4) are derived from LTA4 and together these lipid mediators function in immune reaction regulation. 5-LO is primarily expressed in polymorphonuclear leukocytes, peripheral blood monocytes, macrophages, and mast cells (1,3). Overexpression of 5-LO protein is seen in certain cancer cells and is associated with poor diagnosis (1,4). Depending upon the cell type, 5-LO is localized to either the cytosol or the nucleus of quiescent cells (5). Following stimulation, 5-LO translocates to the nucleus and associates with FLAP to catalyze LTA4 synthesis (2,3). Phosphorylation of specific residues can regulate 5-LO enzymatic activity. Phosphorylation of 5-LO at Ser523 by PKA family kinases inhibits oxygenase activity (6,7) while MAPKAP2 and ERK family kinase phosphorylation at Ser271 and Ser663 stimulates 5-LO enzymatic activity in vivo (8,9).
Caculated MW:   78 kDa
Observed MW:   Refer to Figures
Applications:  
Reacitivity:   Human, Mouse, Rat
For research use only. Not intended for diagnostic or therapeutic use!
Additional information