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Literature summary for 1.3.1.22 extracted from

  • Shefer, S.; Hauser, S.; Mosbach, E.H.
    Studies on the biosynthesis of 5alpha-cholestan-3beta-ol 1.Cholestenone of rat liver (1965), J. Biol. Chem., 241, 946-952.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
17alpha-methyltestosterone
-
Rattus norvegicus
5beta-cholestan-3-one
-
Rattus norvegicus
androst-4-en-3,17-dione
-
Rattus norvegicus
cholest-5-en-3-one
-
Rattus norvegicus
cholestanone
-
Rattus norvegicus
p-chloromercuribenzoate
-
Rattus norvegicus
testosterone
-
Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome
-
Rattus norvegicus
-
-
mitochondrion
-
Rattus norvegicus 5739
-

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
cholest-4-en-3-one + NADPH
-
Rattus norvegicus 5-alpha-cholestan-3-one + NADP+
-
?

Synonyms

Synonyms Comment Organism
More microsomal cholest-4-en-3-one 5alpha-reductase is not identical with microsomal DELTA4-3-ketosteroid 5alpha-reductase Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.3 7.6
-
Rattus norvegicus

Cofactor

Cofactor Comment Organism Structure
additional information NADH: no activity Rattus norvegicus
additional information absolute requirement for NADPH in rat liver Rattus norvegicus
additional information absolute requirement for NADPH in rat epididymis Rattus norvegicus
NADPH absolute requirement for NADPH Rattus norvegicus