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Literature summary for 5.3.99.3 extracted from

  • Pettersson, P.L.; Thoren, S.; Jakobsson, P.J.
    Human microsomal prostaglandin E synthase 1: a member of the MAPEG protein superfamily (2005), Methods Enzymol., 401, 147-161.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
glutathione
-
Homo sapiens
additional information proinflammatory cytokinin, induction of the enzyme Homo sapiens

Application

Application Comment Organism
drug development the enzyme constitues an attractive drug target for treatment of inflammatory diseases Homo sapiens

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
additional information glucocorticosteroids, down-regulation of the enzyme Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.16
-
prostaglandin H2
-
Homo sapiens
0.16
-
prostaglandin G2
-
Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome
-
Homo sapiens
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
215000
-
gradient centrifugation, density equilibrium centrifugation, gel filtration Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
additional information in patients with rheumatoid arthritis, the protein is overexpressed in synovial tissue, particularly by macrophages and fibroblasts in the synovial lining layer Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
100 200 in the presence of 0.4 mM prostaglandin H2 or prostaglandin G2 and 2.5 mM glutatione Homo sapiens
510
-
in the presence of 10 microM prostaglandin H2 or prostaglandin G2 and 2.5 mM glutatione Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
prostaglandin G2 at pH 7.5, 2.5 mM glutathione and 10 microM substrate Homo sapiens 15-hydroperoxy-prostaglandin E2
-
?
Prostaglandin H2 at pH 7.5, 2.5 mM glutathione and 10 microM substrate Homo sapiens Prostaglandin E2
-
?

Subunits

Subunits Comment Organism
trimer 3 * ?, gradient centrifugation, density equilibrium centrifugation, gel filtration Homo sapiens

Synonyms

Synonyms Comment Organism
MPGES1
-
Homo sapiens
prostaglandin E synthase 1
-
Homo sapiens

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
50
-
prostaglandin H2
-
Homo sapiens
75
-
prostaglandin G2
-
Homo sapiens