ID 1.14.19.10 DE icosanoyl-CoA 5-desaturase. AN acyl-CoA Delta(5)-desaturase. CA eicosanoyl-CoA + 2 Fe(II)-[cytochrome b5] + 2 H(+) + O2 = (5Z)- CA eicosenoyl-CoA + 2 Fe(III)-[cytochrome b5] + 2 H2O. CC -!- The enzyme, characterized from the plant Limnanthes douglasii CC (meadowfoam), is involved in the biosynthesis of (5Z)-icos-5-enoate, CC an unusual monounsaturated fatty acid that makes up to 60% of the CC total fatty acids in Limnanthes sp. seed oil. CC -!- The enzyme only acts on saturated fatty acids. DR Q9FV68, ICO5D_LIMDO; //