sphingolipid 8-(E)-desaturase

The enzyme, characterized from the yeasts Kluyveromyces lactis and Candida albicans and from the diatom Thalassiosira pseudonana, introduces a trans double bond at the 8-position of sphingoid bases in sphingolipids. The enzyme determines the position of the double bond by its distance from the alcohol end of the sphingoid base, and contains a cytochrome b5 domain that acts as the direct electron donor to the active site of the desaturase. The homologous enzymes from higher plants, EC 1.14.19.29, sphingolipid 8-(E/Z)-desaturase, act on phytosphinganine (4-hydroxysphinganine) and produces a mixture of trans and cis isomers.

• Supplier: Creative Enzymes
• Product #: EXWM-0980