| abstract |
The invention relates to enzymes which selectively introduce a double bond in the sphingobase of the ceramide residual of sphingolipids and of capnoids. The invention also relates to DNA sequences which code for these enzymes, to the use of the enzymes and DNA sequences for modifying the content and/or the structure of sphingolipids, the catabolites thereof and/or their synthetic subsequent products in transgenic cells and/or organisms. In addition, a method is provided for producing sphingolipids and capnoids with an unsaturated sphingobase. |