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Your query returned 1 entry. 
Printable version
| EC | 1.14.19.36 | ||
| Accepted name: | sn-1 acyl-lipid ω-3 desaturase (ferredoxin) | ||
| Reaction: | (1) a 1-γ-linolenoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-stearidonoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O (2) a 1-linoleoyl-2-acyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a 1-α-linolenoyl-2-acyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O |
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| Glossary: | stearidonic acid = (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoic acid | ||
| Other name(s): | desB (gene name) | ||
| Systematic name: | 1-γ-linolenoyl-2-acyl-[glycerolipid],ferredoxin:oxygen oxidoreductase (15,16 cis-dehydrogenating) | ||
| Comments: | The enzyme, characterized from cyanobacteria, introduces a cis double bond at carbon 15 of linoleoyl and γ-linolenoyl groups attached to the sn-1 position of glycerolipids. The enzyme is an ω 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 ω-3 desaturase (ferredoxin). | ||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||
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