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ENZYME entry: EC 1.14.19.34

Accepted Name
Acyl-lipid (9+3)-(E)-desaturase.
Alternative Name(s)
Acyl-lipid 12-(E)-desaturase.
Reaction catalysed
  • An oleoyl-[glycerolipid] + 2 ferrocytochrome b5 + O(2) + 2 H(+) <=> a (9Z,12E)-octadeca-9,12-dienoyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H(2)O
  • A palmitoleoyl-[glycerolipid] + 2 ferrocytochrome b5 + O(2) + 2 H(+) <=> a (9Z,12E)-hexadeca-9,12-dienoyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H(2)O
Comment(s)
  • The enzymes from the plants Dimorphotheca sinuata (African daisy) and Vernicia fordii (tung oil tree) insert a trans double bond in position C-12 of oleate and palmitoleate incorporated into glycerolipids.
  • The enzyme introduces the new double bond at a position three carbons away from an existing double bond at position 9, toward the methyl end of the fatty acid.
  • The enzyme from tung oil tree also possesses the activity of EC 1.14.19.33.
Cross-references
BRENDA1.14.19.34
EC2PDB1.14.19.34
ExplorEnz1.14.19.34
PRIAM enzyme-specific profiles1.14.19.34
KEGG Ligand Database for Enzyme Nomenclature1.14.19.34
IUBMB Enzyme Nomenclature1.14.19.34
IntEnz1.14.19.34
MEDLINEFind literature relating to 1.14.19.34
MetaCyc1.14.19.34
Rhea expert-curated reactions1.14.19.34
UniProtKB/Swiss-Prot
Q6RS95, FAD21_DIMSI;  Q8GZC2, FADX_VERFO;  

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