a ganglioside GD3 + CMP-N-acetyl-9-O-acetyl-beta-neuraminate <=> a ganglioside Ac-O-9-GT3 + CMP + H(+)
a ganglioside gd3 + cmp-n-acetyl-9-o-acetyl-beta-neuraminate <=> a ganglioside ac-o-9-gt3 + cmp + h(+)