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1.14.19.18: sphingolipid 8-(E)-desaturase

This is an abbreviated version!
For detailed information about sphingolipid 8-(E)-desaturase, go to the full flat file.

Reaction

a (4E)-sphing-4-enine ceramide
+ 2 ferrocytochrome b5 +
O2
+ 2 H+ =
a (4E,8E)-sphing-4,8-dienine ceramide
+ 2 ferricytochrome b5 + 2 H2O

Synonyms

8 fatty acid desaturase, 8-sphingolipid desaturase, D8A, D8B, D8C, D8D, DELTA8-sphingolipid desaturase, DesB, SLD, sphinganine DELTA8-desaturase

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.19 With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water
                1.14.19.18 sphingolipid 8-(E)-desaturase

Natural Substrates Products

Natural Substrates Products on EC 1.14.19.18 - sphingolipid 8-(E)-desaturase

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
(4E)-sphing-4-enine ceramide + ferrocytochrome b5 + O2 + H+
(4E,8E)-sphing-4,8-dienine ceramide + ferricytochrome b5 + H2O
show the reaction diagram
sphinganine + ferrocytochrome b5 + O2 + H+
?
show the reaction diagram
the enzyme shows strong preference for dihydroxylated substrates
-
-
?