label: a lipid X + a UDP-2-N,3-O-bis[(3R)-3-hydroxyacyl]-alpha-D-glucosamine <=> a lipid A disaccharide + UDP + H(+)
label_lc: a lipid x + a udp-2-n,3-o-bis[(3r)-3-hydroxyacyl]-alpha-d-glucosamine <=> a lipid a disaccharide + udp + h(+)