label: beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-ceramide + UDP + H(+) => a beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide + UDP-N-acetyl-alpha-D-glucosamine
label_lc: beta-d-glcnac-(1->3)-beta-d-gal-(1->4)-beta-d-glc-(1<->1)-ceramide + udp + h(+) => a beta-d-galactosyl-(1->4)-beta-d-glucosyl-(1<->1)-ceramide + udp-n-acetyl-alpha-d-glucosamine