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Literature summary for 1.1.1.145 extracted from

  • Qujeq, D.
    Development of a quantitative assay method for 3 beta-hydroxy-DELTA 5-steroid dehydrogenase in the rat testis (2002), Steroids, 67, 1071-1077.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0000047
-
NAD+ 37°C, pH 7.25 Rattus norvegicus
0.00047
-
pregnenolone 37°C, pH 7.25 Rattus norvegicus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
5-pregnen-3beta-ol-2-one + NAD+ Rattus norvegicus trivial name pregnenolone progesterone + NADH
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
testis
-
Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
5-pregnen-3beta-ol-2-one + NAD+ trivial name pregnenolone Rattus norvegicus progesterone + NADH
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
Rattus norvegicus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
5 65 approx. 50% of maximal activity at 20°C and 45°C Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.25
-
-
Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
2 12 approx. 50% of maximal activity at pH 4.0 and pH 10.0 Rattus norvegicus