Prostaglandin D synthase
<StructureSection load='2vcq' size='350' side='right' caption='Human prostaglandin D synthase dimer complex with glutathione (PDB entry 2vcq)' scene=>
FunctionFunction
Prostaglandin D synthase (PGDS) catalyzes the reversible conversion of 9α-11α-epidoxy-15-hydroxyprosta-5,13-dienoate to 9α-15-dihydroxy-11-oxoprosta-5,13-dienoate. Prostaglandin D2 synthase (PGD2S) catalyzes the conversion of prostaglandin H2 to prostaglandin D2 (PGD2). PGD2 functions as a neuromodulator in smooth muscle contraction. PGD2S is a lipocalin-type enzyme which transports small hydrophobic molecules such as steroids. PGDS is a major constituent of cerebrospinal fluid. PGDS binds small lipophilic molecules like retinal and thyroid hormone. Hematopoietic PGDS is named also Glutathione S-transferase σ class. Glutathione is PGDS cofactor[1].
RelevanceRelevance
PGDS is believed to be a cause of baldness.
3D structures of prostaglandin D synthase3D structures of prostaglandin D synthase
Updated on 13-July-2016
Prostaglandin D synthase see Glutathione S-transferase σ class.
Prostaglandin D2 synthaseProstaglandin D2 synthase
Glutatione-dependent
2vcq, 2vcw, 2vcx, 2vcz, 2vd0, 2vd1, 4ec0, 4edz, 4ee0, 4edy – hPGD2S + inhibitor + glutathione
Glutatione-independent
2e4j, 2rq0 - mPGD2S (mutant) – mouse – NMR
2ktd - mPGD2S (mutant) + substrate analog – NMR
2czt, 2czu – mPGD2S (mutant)
2wwp – hPGD2S
3o19, 3o22, 3o2y - hPGD2S (mutant) + oleate + palmitate