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Literature summary for 5.3.3.1 extracted from

  • Geynet, Ph.; Gallay, J.; Alfsen, A.
    Mammalian 3-oxosteroid DELTA5-DELTA4-isomerase. Solubilization by calcium ions and kinetic characteristics toward C19 and C21 steroids (1972), Eur. J. Biochem., 31, 464-469.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.011
-
5-Pregnene-3,20-dione
-
Comamonas testosteroni

Organism

Organism UniProt Comment Textmining
Comamonas testosteroni
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
5-Androstene-3,17-dione
-
Comamonas testosteroni 4-Androstene-3,17-dione
-
?
5-Pregnene-3,20-dione
-
Comamonas testosteroni 4-Pregnene-3,20-dione
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Comamonas testosteroni

pH Range

pH Minimum pH Maximum Comment Organism
7.5 9 pH 7.5: about 40% of maximal activity, pH 9.0: about 60% of maximal activity Comamonas testosteroni