zeatin + O-acetyl-L-serine => L-lupinate + acetate + H(+)
zeatin + o-acetyl-l-serine => l-lupinate + acetate + h(+)
zeatin + O-acetyl-L-serine => L-lupinate + acetate + H(+)
zeatin + o-acetyl-l-serine => l-lupinate + acetate + h(+)