label: a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + S-adenosyl-L-methionine = a 1,2-diacyl-sn-glycero-3-phospho-N-methylethanolamine + S-adenosyl-L-homocysteine + H(+)
label_lc: a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + s-adenosyl-l-methionine = a 1,2-diacyl-sn-glycero-3-phospho-n-methylethanolamine + s-adenosyl-l-homocysteine + h(+)