acyl-lipid (11-3)-desaturase activity
Catalysis of the reaction: an (11Z,14Z)-icosadienoyl-containing glycerolipid + 2 Fe(II)-[cytochrome b5] + 2 H+ + O2 = an (8Z,11Z,14Z)-icosatrienoyl-containing glycerolipid + 2 Fe(III)-[cytochrome b5] + 2 H2O or an (11Z,14Z,17Z)-icosatrienoyl-containing glycerolipid + 2 Fe(II)-[cytochrome b5] + 2 H+ + O2 = an (8Z,11Z,14Z,17Z)-eicosatetraenoyl-containing glycerolipid + 2 Fe(III)-[cytochrome b5] + 2 H2O.
GO:0016717
oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water
is_a
Delta(8)-desaturase
exact
Delta8-sphingolipid desaturase activity
exact
acyl-lipid 8-desaturase
exact