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Literature summary extracted from

  • Hitz, W.D.; Carlson, T.J.; Booth, J.R.; Jr., Kinney, A.J.; Stecca, K.L.; Yadav, N.S.
    Cloning of a higher-plant plastid omega-6 fatty acid desaturase cDNA and its expression in a cyanobacterium (1994), Plant Physiol., 105, 635-641.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

EC Number Cloned (Comment) Organism
1.14.19.23 functional expression in cyanobacterium Synechococcus sp. strain PCC7942 Arabidopsis thaliana

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining

Organism

EC Number Organism UniProt Comment Textmining
1.14.19.23 Arabidopsis thaliana P46312
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Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.19.23 an oleoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ 18:1 carbon fatty acid is the preferred substrate Arabidopsis thaliana a linoleoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O
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 ?
1.14.19.23 an palmitoleoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ the main product arising from desaturation of 16:1(9c) appears to be the 16:2(9,12) isomer and is thus an omega-4 desaturation product rather than an omega-6 desaturation product Arabidopsis thaliana a (9Z,12E)-hexadeca-9,12-dienoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O
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 ?
1.14.19.23 additional information the production of the omega-4 product when 16:1(9c) is the available substrate suggests that the enzyme introduces the second double bond in a methylene-interrupted configuration measuring from the first double bond rather than from the methyl end of the fatty acid Arabidopsis thaliana ?
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 ?