label: a 1-O-(1Z-alkenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + L-serine => 1-O-(1Z-alkenyl)-2-acyl-sn-glycero-3-phospho-L-serine + ethanolamine
label_lc: a 1-o-(1z-alkenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + l-serine => 1-o-(1z-alkenyl)-2-acyl-sn-glycero-3-phospho-l-serine + ethanolamine