hypoxanthine(in) + Na(+)(in) => hypoxanthine(out) + Na(+)(out)
hypoxanthine(in) + na(+)(in) => hypoxanthine(out) + na(+)(out)
hypoxanthine(in) + Na(+)(in) => hypoxanthine(out) + Na(+)(out)
hypoxanthine(in) + na(+)(in) => hypoxanthine(out) + na(+)(out)