3-iodothyronamine + iodide + A + H(+) = 3,5-diiodothyronamine + AH2
3-iodothyronamine + iodide + a + h(+) = 3,5-diiodothyronamine + ah2
3-iodothyronamine + iodide + A + H(+) = 3,5-diiodothyronamine + AH2
3-iodothyronamine + iodide + a + h(+) = 3,5-diiodothyronamine + ah2