Immunogen sequence: MPDSFKVGSQ EYSYEQFLFN TSMLVDYGVE ALVDAFSRQI AGRIGGGRNM DHHILHVAVD VIRESREMRL QPFNEYRKRF GMKPYTSFQE LVGEKEMAAE LEELYGDIDA LEFYPGLLLE KCHPNSIFGE SMIEIGAPFS LKGLLGN. PTGS1 (COX1, Cyclooxygenase 1) is the key enzyme in prostaglandin biosy