| 英文名 |
acyl-lipid DELTA6-acetylenase |
| Example Structure |
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| 别名 |
DELTA6-fatty acyl desaturase, DES6 |
| EC Number |
1.14.19.38 |
| CAS编号 |
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| Comments |
The enzyme, characterized from the moss Ceratodon purpureus, converts the double bond at position 6 of ¦Ã-linolenate and stearidonate into a triple bond. The product of the latter, dicranin, is the main fatty acid found in C. purpureus. The enzyme contains a cytochrome b5 domain that acts as the direct electron donor to the desaturase active site. The enzyme also has the activity of EC 1.14.19.47 acyl-lipid (9-3)-desaturase. |
| Cofactor |
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| History |
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| Reactions |
(1) A gamma-linolenoyl-[glycerolipid] + 2 ferrocytochrome b5 + O(2) + 2 H(+) = a (9Z,12Z)-octadeca-9,12-dien-6-ynoyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H(2)O. (2) A stearidonoyl-[glycerolipid] + 2 ferrocytochrome b5 + O(2) + 2 H(+) = a (9Z,12Z,15Z)-octadeca-9,12,15-trien-6-ynoyl-[glycerolipid] + 2 ferricytochrome b5 + 2 H(2)O. |
