acetoacetate(in) + H(+)(in) => acetoacetate(out) + H(+)(out)
acetoacetate(in) + h(+)(in) => acetoacetate(out) + h(+)(out)
acetoacetate(in) + H(+)(in) => acetoacetate(out) + H(+)(out)
acetoacetate(in) + h(+)(in) => acetoacetate(out) + h(+)(out)