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