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Information on EC 1.14.19.36 - sn-1 acyl-lipid omega-3 desaturase (ferredoxin)

for references in articles please use BRENDA:EC1.14.19.36
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IUBMB Comments
The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 15 of linoleoyl and gamma-linolenoyl groups attached to the sn-1 position of glycerolipids. The enzyme is an omega desaturase, and determines the location of the double bond by counting three carbons from the methyl end of the fatty acid. It is nonspecific with respect to the polar head group of the glycerolipid. cf. EC 1.14.19.35, sn-2 acyl-lipid omega-3 desaturase (ferredoxin).
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
DELTA15 desaturase, DesB, DesB protein, FA omega3-desaturase, FAD8, More, Omega 3 acyl-lipid desaturase, omega3 desaturase, omega3 fatty acid desaturase, omega3-FA-desaturase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a 1-gamma-linolenoyl 2-acyl-sn-glycerol 3-phosphate + 2 reduced ferredoxin + O2 + 2 H+ = a 1-stearidonoyl 2-acyl-sn-glycerol 3-phosphate + 2 oxidized ferredoxin + 2 H2O
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a 1-gamma-linolenoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-stearidonoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O
show the reaction diagram
(1)
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a 1-linoleoyl 2-acyl-sn-glycerol 3-phosphate + 2 reduced ferredoxin + O2 + 2 H+ = a 1-alpha-linolenoyl 2-acyl-sn-glycerol 3-phosphate + 2 oxidized ferredoxin + 2 H2O
show the reaction diagram
a 1-linoleoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-alpha-linolenoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O
show the reaction diagram
(2)
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