label: 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phospho-N-methylethanolamine + S-adenosyl-L-methionine = 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phospho-N,N-dimethylethanolamine + S-adenosyl-L-homocysteine + H(+)
label_lc: 1,2-di-(9z-octadecenoyl)-sn-glycero-3-phospho-n-methylethanolamine + s-adenosyl-l-methionine = 1,2-di-(9z-octadecenoyl)-sn-glycero-3-phospho-n,n-dimethylethanolamine + s-adenosyl-l-homocysteine + h(+)