cytosine + acetate + H(+) => N(4)-acetylcytosine + H2O
cytosine + acetate + h(+) => n(4)-acetylcytosine + h2o
cytosine + acetate + H(+) => N(4)-acetylcytosine + H2O
cytosine + acetate + h(+) => n(4)-acetylcytosine + h2o