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ENZYME entry: EC 1.14.19.36

Accepted Name
sn-1 acyl-lipid omega-3 desaturase (ferredoxin).
Reaction catalysed
  • A 1-gamma-linolenoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) <=> a 1-stearidonoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O
  • A 1-linoleoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) <=> a 1-alpha-linolenoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O
Comment(s)
  • 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.
Cross-references
BRENDA1.14.19.36
EC2PDB1.14.19.36
ExplorEnz1.14.19.36
PRIAM enzyme-specific profiles1.14.19.36
KEGG Ligand Database for Enzyme Nomenclature1.14.19.36
IUBMB Enzyme Nomenclature1.14.19.36
IntEnz1.14.19.36
MEDLINEFind literature relating to 1.14.19.36
MetaCyc1.14.19.36

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