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Literature summary extracted from

  • Hernandez-Guzman, F.G.; Higashiyama, T.; Osawa, Y.; Ghosh, D.
    Purification, characterization and crystallization of human placental estrone/dehydroepiandrosterone sulfatase, a membrane-bound enzyme of the endoplasmic reticulum (2001), J. Steroid Biochem. Mol. Biol., 78, 441-450.
    View publication on PubMed

Application

EC Number Application Comment Organism
3.1.6.2 medicine X-linked ichthyosis is ascribed to the non-functional ES resulting from point and/or deletion mutations in the ES gene Homo sapiens
3.1.6.2 pharmacology enzyme inhibitors can be used as anti-tumor agents Homo sapiens

Crystallization (Commentary)

EC Number Crystallization (Comment) Organism
3.1.6.2 full-length, active enzyme form, X-ray analysis Homo sapiens

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.1.6.2 0.00959
-
dehydroepiandrosterone sulfate pH 8, 37°C Homo sapiens
3.1.6.2 0.07275
-
Estrone sulfate pH 8, 37°C Homo sapiens

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.6.2 endoplasmic reticulum membrane-bound Homo sapiens 5783
-
3.1.6.2 membrane bound to the membrane of the endoplasmic reticulum Homo sapiens 16020
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.1.6.2 additional information
-
native PAGE analysis of solubilized single crystals of ES shows all possible oligomeric states between a monomer and a tetramer, but predominantly the monomeric and dimeric states Homo sapiens
3.1.6.2 65000
-
x * 65000, SDS-PAGE Homo sapiens
3.1.6.2 250000
-
gel filtration Homo sapiens

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.1.6.2 additional information Homo sapiens ES is a component of the three-enzyme system that has been implicated in intracrine biosynthesis of estradiol, hence, proliferation of hormone-dependent breast tumors ?
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.1.6.2 Homo sapiens
-
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
3.1.6.2 glycoprotein N-linked glycosylation at two of the possible four sites Homo sapiens

Purification (Commentary)

EC Number Purification (Comment) Organism
3.1.6.2
-
Homo sapiens

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.6.2 placenta
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1.6.2 additional information
-
-
Homo sapiens
3.1.6.2 1.556
-
pH 8, 37°C, hydrolysis of dehydroepiandrosterone sulfate Homo sapiens

Storage Stability

EC Number Storage Stability Organism
3.1.6.2 room temperature, crystalline state of enzyme, more than 30 days, less than 33% loss of specific activity Homo sapiens
3.1.6.2 room temperature, n-octyl-beta-D-glucopyranoside, several weeks, nearly stable Homo sapiens

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.6.2 dehydroepiandrosterone sulfate + H2O
-
Homo sapiens dehydroepiandrosterone + sulfate
-
?
3.1.6.2 estrone sulfate + H2O
-
Homo sapiens estrone + sulfate
-
?
3.1.6.2 additional information ES is a component of the three-enzyme system that has been implicated in intracrine biosynthesis of estradiol, hence, proliferation of hormone-dependent breast tumors Homo sapiens ?
-
?

Subunits

EC Number Subunits Comment Organism
3.1.6.2 ? x * 65000, SDS-PAGE Homo sapiens
3.1.6.2 More all oligomeric states between a monomer and a tetramer are possible, varying aggregation properties of enzyme under various buffer, pH, detergent and ionic strength conditions, gel filtration suggests ES to be predominantly a homotetramer, native PAGE analysis of solubilized single crystals of ES shows all possible oligomeric states between a monomer and a tetramer, but predominantly the monomeric and dimeric states Homo sapiens

Synonyms

EC Number Synonyms Comment Organism
3.1.6.2 DHEAS
-
Homo sapiens
3.1.6.2 ES
-
Homo sapiens
3.1.6.2 estrone sulfatase
-
Homo sapiens

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.1.6.2 37
-
assay at Homo sapiens

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.1.6.2 6.48
-
dehydroepiandrosterone sulfate pH 8, 37°C Homo sapiens

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.6.2 8
-
assay at Homo sapiens