label: a ganglioside GT3 (d18:1(4E)) + UDP-N-acetyl-alpha-D-galactosamine <=> a ganglioside GT2 (d18:1(4E)) + UDP + H(+)
label_lc: a ganglioside gt3 (d18:1(4e)) + udp-n-acetyl-alpha-d-galactosamine <=> a ganglioside gt2 (d18:1(4e)) + udp + h(+)