sn-1 acyl-lipid omega-3 desaturase (ferredoxin) EC#: 1.14.19.36; ChemWhat Code: 1375801
| Product Name | sn-1 acyl-lipid omega-3 desaturase (ferredoxin) |
| Example Structure |  |
| 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 |
| EC Number | 1.14.19.36 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 15 of linoleoyl and ¦Ã-linolenoyl groups attached to the sn-1 position of glycerolipids. The enzyme is an ¦Ø desaturase, and determines the location of the double bond by counting three carbons from the methyl end of the fatty acid. It is nonspecific with respect to the polar head group of the glycerolipid. cf. EC 1.14.19.35, sn-2 acyl-lipid ¦Ø-3 desaturase (ferredoxin). |
| Cofactor | |
| History | |
| Reactions | (1) A 1-gamma-linolenoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O(2) + 2 H(+) = a 1-stearidonoyl-2-acyl- [glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O. (2) A 1-linoleoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron- sulfur] cluster + O(2) + 2 H(+) = a 1-alpha-linolenoyl-2-acyl- [glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O. |
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