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Literature summary for 1.14.14.23 extracted from

  • Stroup, D.; Ramsaran, J.R.
    Cholesterol 7alpha-hydroxylase is phosphorylated at multiple amino acids (2005), Biochem. Biophys. Res. Commun., 329, 957-965.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression of His6-tagged enzyme in Escherichia coli strain BL21(DE3), stable expression of CYP7A cDNA using the cytomegalovirus promoter and the bovine growth hormone polyadenylation signal in Hep-G2 cells Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
taurochenodeoxycholate 70% inhibition at 0.1 mM Homo sapiens

Localization

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

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
50000
-
x * 50000, approximately, SDS-PAGE Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
cholesterol + [reduced NADPH-hemoprotein reductase] + O2 Homo sapiens
-
7alpha-hydroxycholesterol + [oxidized NADPH-hemoprotein reductase] + H2O
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens P22680 gene CYP7A1
-

Posttranslational Modification

Posttranslational Modification Comment Organism
phosphoprotein the enzyme is phosphorylated at multiple amino acids, overview Homo sapiens

Purification (Commentary)

Purification (Comment) Organism
native and recombinant enzyme partially by microsome preparation Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
Hep-G2 cell
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0000034
-
wild-type Hep-G2 cell microsomes Homo sapiens
0.000092
-
recombinant enzyme in transformed Hep-G2 cells Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cholesterol + [reduced NADPH-hemoprotein reductase] + O2
-
Homo sapiens 7alpha-hydroxycholesterol + [oxidized NADPH-hemoprotein reductase] + H2O
-
?

Subunits

Subunits Comment Organism
? x * 50000, approximately, SDS-PAGE Homo sapiens

Synonyms

Synonyms Comment Organism
cholesterol 7alpha-hydroxylase
-
Homo sapiens

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Homo sapiens