3,3',5'-triiodo-L-thyronine sulfate + iodide + A + H(+) <=> L-thyroxine sulfate + AH2
3,3',5'-triiodo-l-thyronine sulfate + iodide + a + h(+) <=> l-thyroxine sulfate + ah2
3,3',5'-triiodo-L-thyronine sulfate + iodide + A + H(+) <=> L-thyroxine sulfate + AH2
3,3',5'-triiodo-l-thyronine sulfate + iodide + a + h(+) <=> l-thyroxine sulfate + ah2