>tr|A0A8M1FYR1|A0A8M1FYR1_URSMA Prostaglandin-H2 D-isomerase OS=Ursus maritimus GN=PTGDS MAALHTLWMGLVLLGVLGVLQTQAQVQVSLQPNFQQDKFLGRWFTSGLASNSSWFREKKK VLSMCVSVVAPSADGGLNLTSTFLRKEQCETRTLLLRPAGTPGCYSYTSPHWGSTHDVWV AMTDYDEYALLYTTGTKGLGQDFHMATLYSRTQTPRAEIKEKFTTFAKTQGFTEDAIVFL PQTDKCMEEHK