a neolactoside nLc4Cer(d18:1(4E)) + CMP-N-acetyl-beta-neuraminate => a neolactoside IV(3)-alpha-NeuAc-nLc4Cer(d18:1(4E)) + CMP + H(+)
a neolactoside nlc4cer(d18:1(4e)) + cmp-n-acetyl-beta-neuraminate => a neolactoside iv(3)-alpha-neuac-nlc4cer(d18:1(4e)) + cmp + h(+)