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1.1.1.278: 3beta-hydroxy-5alpha-steroid dehydrogenase

This is an abbreviated version!
For detailed information about 3beta-hydroxy-5alpha-steroid dehydrogenase, go to the full flat file.

Reaction

3beta-hydroxy-5alpha-pregnane-20-one
+
NADP+
=
5alpha-pregnan-3,20-dione
+
NADPH
+
H+

Synonyms

3beta-HSD/isomerase, 3beta-hydroxy steroid dehydrogenase, 3beta-hydroxy-steroid dehydrogenase/DELTA5-DELTA4 isomerase, 3beta-hydroxysteroid oxidoreductase, 3beta-hydroxysteroid-5alpha-oxidoreductase, dehydrogenase, 3(17)beta-hydroxy steroid, More

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.278 3beta-hydroxy-5alpha-steroid dehydrogenase

Substrates Products

Substrates Products on EC 1.1.1.278 - 3beta-hydroxy-5alpha-steroid dehydrogenase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
3beta-hydroxy-16alpha,17alpha-epoxypregn-5-en-20-one + NADP+
?
show the reaction diagram
-
is metabolized through the putative 3beta-HSD/isomerase pathway
-
-
?
5alpha-pregnan-3,20-dione + NAD(P)H
3beta-hydroxy-5alpha-pregnan-20-one + NAD(P)+
show the reaction diagram
5alpha-pregnan-3,20-dione + NADPH
3beta-hydroxy-5alpha-pregnane-20-one + NADP+
show the reaction diagram
dehydroepiandrosterone + NADP+
?
show the reaction diagram
pregnenolone + NADP+
?
show the reaction diagram
-
is metabolized through the putative 3beta-HSD/isomerase pathway
-
-
?
additional information
?
-
-
progesterone is no substrate
-
-
?