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1.1.1.418: plant 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

This is an abbreviated version!
For detailed information about plant 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating), go to the full flat file.

Reaction

a 3beta-hydroxysteroid-4alpha-carboxylate
+
NAD+
=
a 3-oxosteroid
+
CO2
+
NADH

Synonyms

3beta-HSD/D1, 3beta-HSD/D2, 3beta-hydroxysteroid dehydrogenase/C-4 decarboxylase, 3beta-hydroxysteroid dehydrogenases/C-4 decarboxylase, 3beta-hydroxysteroid-dehydrogenase/C4-decarboxylase, 3betaHSD/D, 3betaHSD/D1, 3betaHSD/D2, 4alpha-carboxysterol-C3-dehydrogenase/C4-decarboxylase, 4alpha-CD

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.418 plant 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

Systematic Name

Systematic Name on EC 1.1.1.418 - plant 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

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SYSTEMATIC NAME
IUBMB Comments
3beta-hydroxysteroid-4alpha-carboxylate:NAD+ 3-oxidoreductase (decarboxylating)
The enzyme, found in plants, catalyses multiple reactions during plant sterol biosynthesis. Unlike the fungal/animal enzyme EC 1.1.1.170, 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating), the plant enzyme is specific for NAD+.