label: a 1-O-(1Z-alkenyl)-2-acyl-sn-glycerol + CDP-ethanolamine <=> a 1-O-(1Z-alkenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + CMP + H(+)
label_lc: a 1-o-(1z-alkenyl)-2-acyl-sn-glycerol + cdp-ethanolamine <=> a 1-o-(1z-alkenyl)-2-acyl-sn-glycero-3-phosphoethanolamine + cmp + h(+)