Rabbit anti-Human ALOX15B Polyclonal Antibody

Uniprot Id

O15296

Target Species

Human

Target Name

ALOX15B

Target Full Name

Polyunsaturated fatty acid lipoxygenase ALOX15B

Target Function

Non-heme iron-containing dioxygenase that catalyzes the stereo-specific peroxidation of free and esterified polyunsaturated fatty acids (PUFAs) generating a spectrum of bioactive lipid mediators (Probable). It inserts peroxyl groups at C15 of arachidonate ((5Z,8Z,11Z,14Z)-eicosatetraenoate) producing (15S)-hydroperoxyeicosatetraenoate/(15S)-HPETE (Probable). Also peroxidizes linoleate ((9Z,12Z)-octadecadienoate) to 13-hydroperoxyoctadecadienoate/13-HPODE (Probable). Oxygenates arachidonyl derivatives such as 2-arachidonoylglycerol (2-AG) leading to the production and extracellular release of 15-hydroxyeicosatetraenoyl glycerol (15-HETE-G) that acts as a peroxisome proliferator-activated receptor alpha agonist. Has the ability to efficiently class-switch ALOX5 pro-inflammatory mediators into anti-inflammatory intermediates. Participates in the sequential oxidations of DHA ((4Z,7Z,10Z,13Z,16Z,19Z)-docosahexaenoate) to generate specialized pro-resolving mediators (SPMs) resolvin D5 ((7S,17S)-diHPDHA), which can actively downregulate the immune response and have anti-aggregation properties with platelets. In addition to free PUFAs hydrolyzed from phospholipids, it directly oxidizes PUFAs esterified to membrane-bound phospholipids. Has no detectable 8S-lipoxygenase activity on arachidonate but reacts with (8S)-HPETE to produce (8S,15S)-diHPETE (Probable). May regulate progression through the cell cycle and cell proliferation. May also regulate cytokine secretion by macrophages and therefore play a role in the immune response. May also regulate macrophage differentiation into proatherogenic foam cells.; Does not convert arachidonic acid to 15S-hydroperoxyeicosatetraenoic acid/(15S)-HPETE.

Target Subcellular Location

[Isoform A]: Nucleus.; Cytoplasm, cytosol. Cell membrane. Cytoplasm, cytoskeleton. Membrane; Peripheral membrane protein. Cell junction, adherens junction. Cell junction, focal adhesion.

Target Protein Families

Lipoxygenase family

Target Tissue Specificity

Expressed in hair, prostate, lung, ovary, lymph node, spinal cord and cornea.

Target Synonyms

15 Lipoxygenase 2; 15 LO 2; 15 LOX 2; 15-lipoxygenase 2; 15-LOX-2; 15-LOX-B; Alox15b; Arachidonate 15 lipoxygenase second type; Arachidonate 15 lipoxygenase type II; Arachidonate 15-lipoxygenase B; Arachidonate 15-lipoxygenase type II; LX15B_HUMAN

Target Background

This gene encodes a member of the lipoxygenase family of structurally related nonheme iron dioxygenases involved in the production of fatty acid hydroperoxides. The encoded protein converts arachidonic acid exclusively to 15S-hydroperoxyeicosatetraenoic acid, while metabolizing linoleic acid less effectively. This gene is located in a cluster of related genes and a pseudogene that spans approximately 100 kilobases on the short arm of chromosome 17. Alternatively spliced transcript variants encoding different isoforms have been described.