Tags: Enzyme.
In enzymology a prostaglandin-D synthase (EC 5.3.99.2) is an enzyme that catalyzes the chemical reaction(5Z13E)-(15S)-9alpha11alpha-epidioxy-15-hydroxyprosta-513- dienoate (5Z13E)-(15S)-9alpha15-dihydroxy-11-oxoprosta-513-dienoateThus the substrate of this enzyme is (5Z13E)-(15S)-9alpha11alpha-epidioxy-15-hydroxyprosta-513-dienoate whereas its product is (5Z13E)-(15S)-9alpha15-dihydroxy-11-oxoprosta-513-dienoate.This enzyme belongs to the family of isomerases specifically a class of other intramolecular oxidoreductases.