Protein
Arachidonate 15-lipoxygenase B
Organism
Rattus norvegicus
Function
Non-heme iron-containing dioxygenase that catalyzes the stereo-specific peroxidation of free and esterified polyunsaturated fatty acids generating a spectrum of bioactive lipid mediators. Converts arachidonic acid to 15S-hydroperoxyeicosatetraenoic acid/(15S)-HPETE. Also acts on linoleic acid to produce 13-hydroxyoctadecadienoic acid/13-HPODE. Has no detectable 8S-lipoxygenase activity but reacts with (8S)-HPETE to produce (8S,15S)-diHPETE. 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.
Similarity
Belongs to the lipoxygenase family.
Sequence
MAKFRVRVSTGEACGAGTWDKVSVSIVGTHGESPLVPLDHLGKEFSAGAEEDFEVTLPQDVGTVLMLRIHKAPPEAPLPLLSFPPDAWYCRWFELEWLPGAALRFPCYQWLEGAGELVLREGAAKVSWQDHHRTLQDQRQKELESRKDMYSWKTYIEGWPHCLDHETVKDLDLNIKYSAMKNAKFFFKAQSAFTELKFKGLLDRTGLWRSLREMKRMFNFHNTPAAEYVFAHWQEDAFFASQFLNGLNPVLIRRCRRLPENFPVTDEMVAPVLGPGTSLQAELEKGSLFLVDHGILSGVQTNVINGKPQFSAAPMTLLYQSPGSGPLLPIAIQLKQTPGPDNPIFLPSDDKWDWLLAKTWVRNAEFSIHEALTHLLHAHLIPEVFALATLRQLPHCHPLFKLLIPHTRYTLHINTLARELLIAPGKVVDKSTGLGIGGFSDLIKRNMEQLSYSVLCLPEDIRARDVGDLPGYYYRDDGMQIWSAIRSFVSEIVDIYYPSDASVRDDQELQAWVGEIFSEGFLSQESSGMPSLLDTQEALVQYVTMVIFTCSAKHAAVSASQFDSCVWMPNLPPSMQLPPPTSKGQASPEGFIATLPAVNATCDVIIALWLLSKEPGDRRPLGHYPDEHFTEEVPRRSIAAFQRKLIQISSGIRKRNQSLALPYTYLDPPLIENSVSI