label: a 1-O-(9Z-octadecenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) => a 1-O-(1Z,9Z-octadecadienyl)-2-acyl-sn-glycero-3-phosphoethanolamine + 2 Fe(III)-[cytochrome b5] + 2 H2O
label_lc: a 1-o-(9z-octadecenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + 2 fe(ii)-[cytochrome b5] + o2 + 2 h(+) => a 1-o-(1z,9z-octadecadienyl)-2-acyl-sn-glycero-3-phosphoethanolamine + 2 fe(iii)-[cytochrome b5] + 2 h2o