1.14.19.36: sn-1 acyl-lipid omega-3 desaturase (ferredoxin)

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For detailed information about sn-1 acyl-lipid omega-3 desaturase (ferredoxin), go to the full flat file.

Reaction

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, plastidial FAD8 omega-3 desaturase, plastidial omega-3 desaturase, terminal omega3-desaturase

ECTree

     1 Oxidoreductases

         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen

             1.14.19 With oxidation of a pair of donors resulting in the reduction of O₂ to two molecules of water

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

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Results	in table
15	AA Sequence
5	Cloned(Commentary)
2	Cofactor
9	Expression
9	General Information
6	Localization
2	Molecular Weight [Da]
4	Natural Substrates/ Products (Substrates)
12	Organism
2	Pathway
3	Protein Variants
6	Reaction
8	Reference
4	Source Tissue
6	Substrates and Products (Substrate)
2	Subunits
24	Synonyms
1	Systematic Name

General Information

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

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GENERAL INFORMATION

ORGANISM

UNIPROT

COMMENTARY

LITERATURE

evolution

Dunaliella salina

Q9SWY4

the comparative phylogenetic analysis of omega3-desaturase amino acid sequences from diverse organisms places the desaturase of Dunaliella salina between cyanobacteria and higher plants in the evolutionary range of desaturases, overview

735244

malfunction

2 entries

metabolism

2 entries

physiological function

2 entries

additional information

2 entries

malfunction

Arabidopsis thaliana

P48622

leaf lipid analysis of the Arabidopsis omega-3 desaturase fad7 mutant line at growth temperature of 22°C, overview. Disruption of the AtFAD8 gene in fad8i results in trienoic fatty acid levels almost similar to those from wild-type Col-0. The fad7/fad8 double mutant also shows a considerable reduction in trienoic fatty acid, particularly in 16:3, which is undetectable

745809

malfunction

Arabidopsis thaliana Col-0

-

leaf lipid analysis of the Arabidopsis omega-3 desaturase fad7 mutant line at growth temperature of 22°C, overview. Disruption of the AtFAD8 gene in fad8i results in trienoic fatty acid levels almost similar to those from wild-type Col-0. The fad7/fad8 double mutant also shows a considerable reduction in trienoic fatty acid, particularly in 16:3, which is undetectable

-

metabolism

Synechocystis sp.

-

temperature-dependent expression of the des genes responsible for the maintenance of an optimal fluidity of cell membranes, feedback regulation. The temperature-dependent transcription of the desA, and to a greater extent desB genes, depends on the level of stress-induced changes in the genomic DNA supercoiling

734668

metabolism

Nostoc sp.

Q704F0

the conversion of the C18 fatty acid to C18:3(9,12,15) is catalyzed in a step wise manner by DesC, DesA, and DesB, respectively

733245

physiological function

Arabidopsis thaliana

P48622

fatty acid and lipid analysis of several omega-3 desaturase mutants, including two insertion lines of two plastidial omega-3 desaturases AtFAD7 and AtFAD8, shows that FAD8 partially compensates the disruption of the AtFAD7 gene at 22°C, indicating that FAD8 is active at this growth temperature, contrasting to previous observations that circumscribe the FAD8 activity at low temperature. FAD8 has a higher selectivity for 18:2 acyl-lipid substrates and a higher preference for lipids other than galactolipids, particularly phosphatidylglycerol, at any of the temperatures studied. Differences in the mechanism controlling AtFAD7 and AtFAD8 gene expression at different temperatures. The function of both plastidial omega-3 desaturases is coordinated in a non-redundant manner

745809

physiological function

Arabidopsis thaliana Col-0

-

fatty acid and lipid analysis of several omega-3 desaturase mutants, including two insertion lines of two plastidial omega-3 desaturases AtFAD7 and AtFAD8, shows that FAD8 partially compensates the disruption of the AtFAD7 gene at 22°C, indicating that FAD8 is active at this growth temperature, contrasting to previous observations that circumscribe the FAD8 activity at low temperature. FAD8 has a higher selectivity for 18:2 acyl-lipid substrates and a higher preference for lipids other than galactolipids, particularly phosphatidylglycerol, at any of the temperatures studied. Differences in the mechanism controlling AtFAD7 and AtFAD8 gene expression at different temperatures. The function of both plastidial omega-3 desaturases is coordinated in a non-redundant manner

-

additional information

Nostoc sp.

Q704F0

antarctic psychrotolerant, Nostoc sp. SO-36, when grown at 25°C and then shifted to 10°C, shows an increase in the tri-unsaturated fatty acid [C18:3(9,12,15)] at the expense of mono- [C18:1(9)] and di-unsaturated [C18:2(9,12)] fatty acids

733245

additional information

Synechococcus sp.

O07872

fatty acid compositions in the cells at different growth temperatures, overview

733882