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1.3.1.3: DELTA4-3-oxosteroid 5beta-reductase

This is an abbreviated version!
For detailed information about DELTA4-3-oxosteroid 5beta-reductase, go to the full flat file.

Word Map on EC 1.3.1.3

Reaction

17,21-dihydroxy-5beta-pregnane-3,11,20-trione
+
NADP+
=
cortisone
+
NADPH
+
H+

Synonyms

3-oxo-DELTA4-steroid 5beta-reductase, 4,5beta-dihydrocortisone:NADP+ DELTA4-oxidoreductase, 5-beta-reductase, 5beta-POR, 5beta-red, AKR1D1, AKR1D4, aldo-keto reductase, aldo-keto reductase 1D1, aldo–keto reductase 1D1, androstenedione 5beta-reductase, CARUB_v10005016mg, cortisone 5beta-reductase, cortisone beta-reductase, DELTA 4-5beta-reductase, DELTA4-3-ketosteroid 5beta-reductase, DELTA4-3-oxosteroid 5beta-reductase, DELTA4-hydrogenase, EC 1.3.1.23, EC 1.3.1.3, h5beta-red, h5beta-reductase, More, P5betaR, progesterone 5beta-reductase, reductase, cholestenone 5beta.-, reductase, cortisone DELTA4-5beta-, SRD5beta, St5betaR1, steroid 5beta-reductase, steroid 5beta.-reductase, testosterone 5-beta-reductase, testosterone 5beta-reductase

ECTree

     1 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.1 With NAD+ or NADP+ as acceptor
                1.3.1.3 DELTA4-3-oxosteroid 5beta-reductase

KCat KM Value

KCat KM Value on EC 1.3.1.3 - DELTA4-3-oxosteroid 5beta-reductase

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kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
10.94
1,4-androstadien-17beta-ol-3-one
-
pH 6.0, 37°C
0.52 - 9.607
2-cyclohexen-1-one
0.93 - 2.77
4-androstene-3,17-dione
41.25
4-cholesten-7alpha-ol-3-one
-
pH 6.0, 37°C
15
4-estren-17beta-ol-3-one
-
pH 6.0, 37°C
60
aldosterone
-
pH 6.0, 37°C
2.609 - 43.08
androstenedione
33.33
cholestenone
-
pH 6.0, 37°C
14.54
corticosterone
-
pH 6.0, 37°C
3.44 - 13
cortisol
7.69 - 12.91
cortisone
34.48
Epitestosterone
-
pH 6.0, 37°C
0.052 - 0.628
progesterone
3.5 - 51.85
testosterone