label: a beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide + UDP-N-acetyl-alpha-D-galactosamine = a ganglioside GA2 + UDP + H(+)
label_lc: a beta-d-galactosyl-(1->4)-beta-d-glucosyl-(1<->1)-ceramide + udp-n-acetyl-alpha-d-galactosamine = a ganglioside ga2 + udp + h(+)