ALOX15 (also termed arachidonate 15-lipoxygenase, 15-lipoxygenase-1, 15-LO-1, 15-LOX-1) is, like other lipoxygenases, a seminal enzyme in the metabolism of polyunsaturated fatty acids to a wide range of physiologically and pathologically important products. By metabolizing the ω-3 polyunsaturated fatty acids, eicosapentaenoic acid and docosahexaenoic acid, into 17-HpDHA, 17-HDHA, and the resolvins and protectins, ALOX15's metabolic action is thought to be one mechanism by which dietary ω-3 polyunsaturated fatty acids, particularly fish oil, act to ameliorate inflammation, inflammation-related diseases, and certain cancers.