Home  |  Contact

A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 1.14.19.35

Accepted Name
sn-2 acyl-lipid omega-3 desaturase (ferredoxin).
Reaction catalysed
  • A (7Z,10Z)-hexadeca-7,10-dienoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) <=> a (7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O
  • A linoleoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) <=> an alpha-linolenoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O
Comment(s)
  • This plastidial enzyme desaturates 16:2 fatty acids attached to the sn-2 position of glycerolipids to 16:3 fatty acids, and converts18:2 to 18:3 in both the sn-1 and sn-2 positions.
  • It acts on all 16:2- or 18:2-containing chloroplast membrane lipids, including phosphatidylglycerol, monogalactosyldiacylglycerol, digalactosyldiaclyglycerol, and sulfoquinovosyldiacylglycerol.
  • The enzyme introduces a cis double bond at a location 3 carbons away from the methyl end of the fatty acid.
  • The distance from the carboxylic acid end of the molecule does not affect the location of the new double bond.
  • Cf. EC 1.14.19.25 and EC 1.14.19.36.
Cross-references
BRENDA1.14.19.35
EC2PDB1.14.19.35
ExplorEnz1.14.19.35
PRIAM enzyme-specific profiles1.14.19.35
KEGG Ligand Database for Enzyme Nomenclature1.14.19.35
IUBMB Enzyme Nomenclature1.14.19.35
IntEnz1.14.19.35
MEDLINEFind literature relating to 1.14.19.35
MetaCyc1.14.19.35
UniProtKB/Swiss-Prot
P46310, FAD3C_ARATH;  Q56VS4, FAD3C_HELAN;  P48622, FAD3D_ARATH;  

View entry in original ENZYME format
View entry in raw text format (no links)
All UniProtKB/Swiss-Prot entries referenced in this entry, with possibility to download in different formats, align etc.
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.14.19.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.14.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.-.-.-