Recombinant Human 5 Lipoxygenase/5-LO protein (GST tag N-Terminus)
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Recombinant Human 5 Lipoxygenase/5-LO protein (GST tag N-Terminus) is a Human Full Length protein, in the 1 to 674 aa range, expressed in Wheat germ, suitable for SDS-PAGE, ELISA, WB.
View Alternative Names
LOG5, ALOX5, Polyunsaturated fatty acid 5-lipoxygenase, Arachidonate 5-lipoxygenase, 5-LO, 5-lipoxygenase
- SDS-PAGE
Unknown
SDS-PAGE - Recombinant Human 5 Lipoxygenase/5-LO protein (GST tag N-Terminus) (AB114310)
SDS-PAGE analysis of ab114310 on a 12.5% gel stained with Coomassie Blue.
Reactivity data
Sequence info
Properties and storage information
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Aliquoting information
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
The activity of 5-Lipoxygenase contributes to the production of leukotrienes which are pivotal in mediating inflammatory and allergic responses. This enzyme operates alone but it often interacts with 5-LOX-activating protein (FLAP) to facilitate the synthesis of leukotrienes efficiently. These interactions suggest that 5-LOX has a significant role in cellular processes related to inflammation and immune reactions.
Pathways
5-Lipoxygenase is integral to the arachidonic acid metabolic pathway initiating the biosynthesis of leukotrienes from arachidonic acid. This pathway also involves other enzymes like phospholipase A2 which releases arachidonic acid from membrane phospholipids and cyclooxygenase enzymes (COX) which convert arachidonic acid into prostaglandins. The end products of this pathway including leukotrienes manage and resolve inflammation and immune responses illustrating the collaborative effort between these enzymes.
Specifications
Form
Liquid
General info
Function
Catalyzes the oxygenation of arachidonate ((5Z,8Z,11Z,14Z)-eicosatetraenoate) to 5-hydroperoxyeicosatetraenoate (5-HPETE) followed by the dehydration to 5,6- epoxyeicosatetraenoate (Leukotriene A4/LTA4), the first two steps in the biosynthesis of leukotrienes, which are potent mediators of inflammation (PubMed : 19022417, PubMed : 21233389, PubMed : 22516296, PubMed : 23246375, PubMed : 24282679, PubMed : 24893149, PubMed : 31664810, PubMed : 8615788, PubMed : 8631361). Also catalyzes the oxygenation of arachidonate into 8-hydroperoxyicosatetraenoate (8-HPETE) and 12-hydroperoxyicosatetraenoate (12-HPETE) (PubMed : 23246375). Displays lipoxin synthase activity being able to convert (15S)-HETE into a conjugate tetraene (PubMed : 31664810). Although arachidonate is the preferred substrate, this enzyme can also metabolize oxidized fatty acids derived from arachidonate such as (15S)-HETE, eicosapentaenoate (EPA) such as (18R)- and (18S)-HEPE or docosahexaenoate (DHA) which lead to the formation of specialized pro-resolving mediators (SPM) lipoxin and resolvins E and D respectively, therefore it participates in anti-inflammatory responses (PubMed : 17114001, PubMed : 21206090, PubMed : 31664810, PubMed : 32404334, PubMed : 32841762, PubMed : 8615788). Oxidation of DHA directly inhibits endothelial cell proliferation and sprouting angiogenesis via peroxisome proliferator-activated receptor gamma (PPARgamma) (By similarity). It does not catalyze the oxygenation of linoleic acid and does not convert (5S)-HETE to lipoxin isomers (PubMed : 31664810). In addition to inflammatory processes, it participates in dendritic cell migration, wound healing through an antioxidant mechanism based on heme oxygenase-1 (HO-1) regulation expression, monocyte adhesion to the endothelium via ITGAM expression on monocytes (By similarity). Moreover, it helps establish an adaptive humoral immunity by regulating primary resting B cells and follicular helper T cells and participates in the CD40-induced production of reactive oxygen species (ROS) after CD40 ligation in B cells through interaction with PIK3R1 that bridges ALOX5 with CD40 (PubMed : 21200133). May also play a role in glucose homeostasis, regulation of insulin secretion and palmitic acid-induced insulin resistance via AMPK (By similarity). Can regulate bone mineralization and fat cell differentiation increases in induced pluripotent stem cells (By similarity).
Sequence similarities
Belongs to the lipoxygenase family.
Post-translational modifications
Serine phosphorylation by MAPKAPK2 is stimulated by arachidonic acid (PubMed:11844797, PubMed:18978352). Phosphorylation on Ser-524 by PKA has an inhibitory effect (PubMed:15280375). Phosphorylation on Ser-272 prevents export from the nucleus (PubMed:11844797, PubMed:18978352). Phosphorylation at Ser-524 is stimulated by 8-bromo-3',5'-cyclic AMP or prostaglandin E2 (PubMed:26210919).
Target data
Product promise
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