label: a ganglioside GD3 (d18:1(4E)) + CMP-N-acetyl-beta-neuraminate => a ganglioside GT3 (d18:1(4E)) + CMP + H(+)
label_lc: a ganglioside gd3 (d18:1(4e)) + cmp-n-acetyl-beta-neuraminate => a ganglioside gt3 (d18:1(4e)) + cmp + h(+)