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Information on EC 1.14.19.75 - very-long-chain acyl-lipid omega-9 desaturase

for references in articles please use BRENDA:EC1.14.19.75
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EC Tree
IUBMB Comments
The enzyme, characterized from the plant Arabidopsis thaliana, acts on both 24:0 and 26:0 fatty acids, introducing a cis double bond at a position 9 carbons from the methyl end. These very-long-chain fatty acids are found as a minor component of seed lipids, but also in the membrane phosphatidylethanolamine and phosphatidylserine, in sphingolipids, as precursors and components of cuticular and epicuticular waxes, and in suberin.
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The expected taxonomic range for this enzyme is: Arabidopsis thaliana
Reaction Schemes
1-hexacosanoyl-2-acyl-[phosphoglycerolipid]
+
2
+
+
2
=
1-[(17Z)-hexacos-17-enoyl]-2-acyl-[phosphoglycerolipid]
+
2
+
2
1-tetracosanoyl-2-acyl-[phosphoglycerolipid]
+
2
+
+
2
=
1-[(15Z)-tetracos-15-enoyl]-2-acyl-[phosphoglycerolipid]
+
2
+
2
Synonyms
atads2, acyl-lipid desaturase2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
1-hexacosanoyl-2-acyl-[phosphoglycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ = 1-[(17Z)-hexacos-17-enoyl]-2-acyl-[phosphoglycerolipid] + 2 ferricytochrome b5 + 2 H2O
show the reaction diagram
(1)
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-
-
1-tetracosanoyl-2-acyl-[phosphoglycerolipid] + 2 ferrocytochrome b5 + O2 + 2 H+ = 1-[(15Z)-tetracos-15-enoyl]-2-acyl-[phosphoglycerolipid] + 2 ferricytochrome b5 + 2 H2O
show the reaction diagram
(2)
-
-
-
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