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- Table of Contents
Facts about Prostaglandin-H2 D-isomerase.
Binds little non-substrate lipophilic molecules, such as biliverdin, bilirubin, retinal, retinoic acid and thyroid gland, and may act as a scavenger for harmful hydrophopic molecules and as a secretory retinoid and thyroid hormone transporter. Possibly involved in development and maintenance of the blood-brain, blood-retina, blood-aqueous comedy and blood-testis barrier.
Human | |
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Gene Name: | PTGDS |
Uniprot: | P41222 |
Entrez: | 5730 |
Belongs to: |
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calycin superfamily |
Beta-trace protein; Cerebrin-28; EC 5.3.99.2; Glutathione-independent PGD synthase; glutathione-independent PGD synthetase; lipocalin-type prostaglandin D synthase; Lipocalin-type prostaglandin-D synthase; L-PGDS; PDS; PGD2 Synthase; PGD2; PGDS2; PGDSLPGDS; PH2DISO; prostaglandin D synthase; prostaglandin D2 synthase (21kD, brain); prostaglandin D2 synthase 21kDa (brain); Prostaglandin-D2 synthase; prostaglandin-H2 D-isomerase; PTGDS
Mass (kDA):
21.029 kDA
Human | |
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Location: | 9q34.3 |
Sequence: | 9; NC_000009.12 (136977504..136981742) |
Abundant in the brain and CNS, where it is expressed in tissues of the blood-brain barrier and secreted into the cerebro-spinal fluid. Abundantly expressed in the heart. In the male reproductive system, it is expressed in the testis, epididymis and prostate, and is secreted into the seminal fluid. Expressed in the eye and secreted into the aqueous humor. Lower levels detected in various tissue fluids such as serum, normal urine, ascitic fluid and tear fluid. Also found in a number of other organs including ovary, fimbriae of the fallopian tubes, kidney, leukocytes.
Rough endoplasmic reticulum. Nucleus membrane. Golgi apparatus. Cytoplasm, perinuclear region. Secreted. Detected on rough endoplasmic reticulum of arachnoid and menigioma cells. Localized to the nuclear envelope, Golgi apparatus, secretory vesicles and spherical cytoplasmic structures in arachnoid trabecular cells, and to circular cytoplasmic structures in meningeal macrophages and perivascular microglial cells. In oligodendrocytes, localized to the rough endoplasmic reticulum and nuclear envelope. In retinal pigment epithelial cells, localized to distinct cytoplasmic domains including the pe
PMID: 1902577 by Nagata A., et al. Human brain prostaglandin D synthase has been evolutionarily differentiated from lipophilic-ligand carrier proteins.
PMID: 1385416 by White D.M., et al. Structure and chromosomal localization of the human gene for a brain form of prostaglandin D2 synthase.