ID 5.3.99.4 DE prostaglandin-I synthase. AN PGI2 synthase. AN PGI2 synthetase. AN prostacyclin synthase. CA prostaglandin H2 = prostaglandin I2. CC -!- Converts prostaglandin H2 into prostaglandin I2 (prostacyclin). DR Q29626, PTGIS_BOVIN; F1RE08, PTGIS_DANRE; Q16647, PTGIS_HUMAN; DR O35074, PTGIS_MOUSE; Q62969, PTGIS_RAT ; //