a CMP-N-acyl-beta-neuraminate + diphosphate => an N-acylneuraminate + CTP
a cmp-n-acyl-beta-neuraminate + diphosphate => an n-acylneuraminate + ctp
a CMP-N-acyl-beta-neuraminate + diphosphate => an N-acylneuraminate + CTP
a cmp-n-acyl-beta-neuraminate + diphosphate => an n-acylneuraminate + ctp