EC Number   |
General Information |
Reference |
|---|
   1.14.19.36 | evolution |
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 |
| 1.14.19.36 | malfunction |
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 |
| 1.14.19.36 | metabolism |
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 |
| 1.14.19.36 | metabolism |
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 |
| 1.14.19.36 | more |
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 |
| 1.14.19.36 | more |
fatty acid compositions in the cells at different growth temperatures, overview |
733882 |
| 1.14.19.36 | physiological function |
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 |
