CMP-N-acetyl-beta-neuraminate(out) + CMP(in) => CMP-N-acetyl-beta-neuraminate(in) + CMP(out)
cmp-n-acetyl-beta-neuraminate(out) + cmp(in) => cmp-n-acetyl-beta-neuraminate(in) + cmp(out)
CMP-N-acetyl-beta-neuraminate(out) + CMP(in) => CMP-N-acetyl-beta-neuraminate(in) + CMP(out)
cmp-n-acetyl-beta-neuraminate(out) + cmp(in) => cmp-n-acetyl-beta-neuraminate(in) + cmp(out)