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Literature summary for 3.1.1.13 extracted from

  • Taketani, S.; Nishino, T.; Katsuki, H.
    Purification and properties of sterol-ester hydrolase from Saccharomyces cerevisiae (1981), J. Biochem., 89, 1667-1673.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
albumin slightly activating Saccharomyces cerevisiae
lysophosphatidylcholine
-
Saccharomyces cerevisiae
phosphatidylcholine at pH 6.6 Saccharomyces cerevisiae
sodium taurocholic acid less effective to stimulation than phosphatidylcholine Saccharomyces cerevisiae
Triton X-100 activating by low concentrations Saccharomyces cerevisiae

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ 20% inhibition Saccharomyces cerevisiae
Hg2+ 15% inhibition Saccharomyces cerevisiae
N-ethylmaleimide complete loss of activity Saccharomyces cerevisiae
p-mercuribenzoate 60% inhibition Saccharomyces cerevisiae
Triton X-100 inhibition above 0.1% w/v Saccharomyces cerevisiae

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.107
-
cholesteryl oleate at pH 4.4 Saccharomyces cerevisiae
0.143
-
cholesteryl oleate at pH 6.6 Saccharomyces cerevisiae

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Saccharomyces cerevisiae 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
70000
-
gel filtration Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
cholesteryl esters + H2O Saccharomyces cerevisiae
-
cholesterol + fatty acid
-
?

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Purification (Commentary)

Purification (Comment) Organism
700fold by protamine treatment, chromatography techniques to homogeneity Saccharomyces cerevisiae

Source Tissue

Source Tissue Comment Organism Textmining
cell culture
-
Saccharomyces cerevisiae
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.003
-
-
Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cholesteryl esters + H2O
-
Saccharomyces cerevisiae cholesterol + fatty acid
-
?
cholesteryl oleate + H2O
-
Saccharomyces cerevisiae cholesterol + oleic acid
-
ir

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.4
-
-
Saccharomyces cerevisiae
6.6
-
-
Saccharomyces cerevisiae