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EC 1.1.1.170: 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

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

Wordmap for 1.1.1.170

Word Map on EC 1.1.1.170 Wordmap for 1.1.1.170

Reaction

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a 3beta-hydroxysteroid-4alpha-carboxylate
+
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NAD(P)+
=
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a 3-oxosteroid
+
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CO2
+
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NAD(P)H

Synonyms

3beta-hydroxy-4alpha-methylcholestenecarboxylate 3-dehydrogenase (decarboxylating), 3beta-hydroxy-4beta-methylcholestenoate dehydrogenase, 4alpha-carboxylic acid decarboxylase, C-3 sterol dehydrogenase(C-4 decarboxylase), Erg26, Erg26p, NSDHL, sterol 4alpha-carboxylic decarboxylase, sterol-4-alpha-carboxylate 3-dehydrogenase, sterol-4-alpha-carboxylate-3-dehydrogenase, sterol-4alpha-carboxylate 3-dehydrogenase

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                EC 1.1.1.1701.1.1.170 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

Natural Substrates Products

Natural Substrates Products on EC 1.1.1.170 - 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase (decarboxylating)

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
LITERATURE
COMMENTARY hide
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
3beta-hydroxy-4alpha-methyl-5alpha-cholest-7-ene-4beta-carboxylate + NAD+
4alpha-methyl-5alpha-cholest-7-en-3-one + CO2 + NADH
show the reaction diagram
-
Substrates: -
Products: -
?
3beta-hydroxy-4beta-methyl-5alpha-cholest-7-en-4alpha-oic acid + NAD+
4alpha-methyl-5alpha-cholest-7-en-3-one + CO2 + NADH
show the reaction diagram
-
Substrates: no epimerization of 4beta-isomer into 4alpha-isomer
Products: -
ir
a 3beta-hydroxysteroid-4alpha-carboxylate + NAD(P)+
a 3-oxosteroid + CO2 + NAD(P)H
show the reaction diagram
additional information
?
-
-
Substrates: involved in the removal of C-4 methyl groups in postsqualene cholesterol synthesis
Products: -
?