label: a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + CO2 => a 1,2-diacyl-sn-glycero-3-phospho-L-serine + H(+)
label_lc: a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + co2 => a 1,2-diacyl-sn-glycero-3-phospho-l-serine + h(+)