CMP-N-acetyl-beta-neuraminate + acetyl-CoA => CMP-N-acetyl-7-O-acetyl-beta-neuraminate + CoA
cmp-n-acetyl-beta-neuraminate + acetyl-coa => cmp-n-acetyl-7-o-acetyl-beta-neuraminate + coa
CMP-N-acetyl-beta-neuraminate + acetyl-CoA => CMP-N-acetyl-7-O-acetyl-beta-neuraminate + CoA
cmp-n-acetyl-beta-neuraminate + acetyl-coa => cmp-n-acetyl-7-o-acetyl-beta-neuraminate + coa