Aspirin acetylates the cyclooxygenase, prostaglandin G/H synthase 2 (PTGS2) aka COX2. The acetylated PTGS2 triggers the formation of 15R-hydroxyeicosatetraenoic acid (15R-HETE) from arachidonic acid (Claria & Serhan 1995).
ClĂ ria, J, Serhan, CN
arachidonate 15-lipoxygenase activity of Ac-PTGS2 dimer [endoplasmic reticulum membrane]
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