label: an N-methylornithine lipid + S-adenosyl-L-homocysteine + H(+) => an N(2)-[(3R)-3-(2-saturated-acyloxy)acyl]-L-ornithine lipid + S-adenosyl-L-methionine
label_lc: an n-methylornithine lipid + s-adenosyl-l-homocysteine + h(+) => an n(2)-[(3r)-3-(2-saturated-acyloxy)acyl]-l-ornithine lipid + s-adenosyl-l-methionine