a ganglioside GT1aalpha (d18:1(4E)) + CMP + H(+) => a ganglioside GD1a (d18:1(4E)) + CMP-N-acetyl-beta-neuraminate
a ganglioside gt1aalpha (d18:1(4e)) + cmp + h(+) => a ganglioside gd1a (d18:1(4e)) + cmp-n-acetyl-beta-neuraminate
a ganglioside GT1aalpha (d18:1(4E)) + CMP + H(+) => a ganglioside GD1a (d18:1(4E)) + CMP-N-acetyl-beta-neuraminate
a ganglioside gt1aalpha (d18:1(4e)) + cmp + h(+) => a ganglioside gd1a (d18:1(4e)) + cmp-n-acetyl-beta-neuraminate