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Literature summary extracted from

  • Yamasaki, T.; Izumi, S.; Ide, H.; Ohyama, Y.
    Identification of a novel rat microsomal vitamin D3 25-hydroxylase (2004), J. Biol. Chem., 279, 22848-22856.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.14.14.24 expression in Escherichia coli Rattus norvegicus

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.14.14.24 Emulgen 911 strong reversible inhibition Rattus norvegicus
1.14.14.24 Triton X-100 strong reversible inhibition Rattus norvegicus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.14.14.24 0.0006
-
1alpha-hydroxyvitamin D3 pH 7.7, 37°C Rattus norvegicus
1.14.14.24 0.00079
-
vitamin D3 pH 7.7, 37°C Rattus norvegicus

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.14.14.24 microsome
-
Rattus norvegicus
-
-

Organism

EC Number Organism UniProt Comment Textmining
1.14.14.24 Rattus norvegicus P51590
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.14.14.24 heart low expression Rattus norvegicus
-
1.14.14.24 kidney low expression Rattus norvegicus
-
1.14.14.24 liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.14.14.24 6400
-
pH 7.7, 37°C Rattus norvegicus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.14.24 1alpha-hydroxyvitamin D3 + O2 + NADPH + H+
-
Rattus norvegicus 1alpha,25-dihydroxyvitamin D3 + NADP+ + H2O
-
?
1.14.14.24 additional information no substrate: testosterone Rattus norvegicus ?
-
?
1.14.14.24 vitamin D3 + O2 + NADPH + H+
-
Rattus norvegicus 25-hydroxyvitamin D3 + NADP+ + H2O
-
?

Subunits

EC Number Subunits Comment Organism
1.14.14.24 ? x * 50000-60000, SDS-PAGE Rattus norvegicus

Synonyms

EC Number Synonyms Comment Organism
1.14.14.24 CYP2J3
-
Rattus norvegicus
1.14.14.24 Cytochrome P450 2J3
-
Rattus norvegicus

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.14.14.24 3.3
-
vitamin D3 pH 7.7, 37°C Rattus norvegicus
1.14.14.24 22
-
1alpha-hydroxyvitamin D3 pH 7.7, 37°C Rattus norvegicus

Cofactor

EC Number Cofactor Comment Organism Structure
1.14.14.24 cytochrome P450
-
Rattus norvegicus

Expression

EC Number Organism Comment Expression
1.14.14.24 Rattus norvegicus CYP2J3 mRNA is is expressed at a level similar to that of CYP27A1 without marked sexual dimorphism additional information