4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one

Stable Identifier
R-HSA-194642
Type
Reaction [transition]
Species
Homo sapiens
Compartment
cytosol, endoplasmic reticulum membrane
Synonyms
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol + NAD+ => 4-methylcholesta-8(9),24-dien-3-one + CO2 + NADH + H+
ReviewStatus
5/5
Locations in the PathwayBrowser
Expand all
General
SVG | 
PNG
Low
Medium
High
 | PPTX  | SBGN
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one
Click the image above or here to open this reaction in the Pathway Browser
The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol and NAD+ react to form 4-methylcholesta-8(9),24-dien-3-one, CO2, and NADH + H+. This reaction occurs in the endoplasmic reticulum, catalyzed by NSDHL (Caldas and Herman 2003). Defects in this enzyme are associated with CHILD syndrome (Congenital Hemidysplasia with Ichthyosiform nevus and Limb Defects) (Konig et al. 2000), but cholesterol biosynthesis in cells and tissues from affected individuals has not been characterized. Instead, the mechanism and stoichiometry of the reaction are inferred from biochemical studies of partially purified rat enzyme (Rahimtula and Gaylor 1972).
Literature References
Participants
Input
Output
Participates
as an event of
Catalyst Activity

3-beta-hydroxysteroid dehydrogenase [NAD(P)+]/C4-decarboxylase activity of NSDHL [endoplasmic reticulum membrane]

Physical Entity
NSDHL [endoplasmic reticulum membrane] (Homo sapiens)
Activity
3-beta-hydroxysteroid dehydrogenase [NAD(P)+]/C4-decarboxylase activity (GO:0000252)
Orthologous Events
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Bos taurus)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Caenorhabditis elegans)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Canis familiaris)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Danio rerio)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Dictyostelium discoideum)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Gallus gallus)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Mus musculus)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Rattus norvegicus)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Saccharomyces cerevisiae)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Schizosaccharomyces pombe)
4-methyl,4-carboxycholesta-8(9),24-dien-3beta-ol is decarboxylated and oxidized to form 4-methylcholesta-8(9),24-dien-3-one (Sus scrofa)
Authored
D'Eustachio, P  (2007-04-21)
Reviewed
Jassal, B  (2007-04-21)
Created
D'Eustachio, P  (2007-03-22)
Cite Us!