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geistererscheinung OP t1_j96ekhl wrote

Reply to comment by NumberOfTheOrgoBeast in Why does the thyroid use iodine ? by geistererscheinung

Okay, that's a very clear answer. And it seems, at least from Wikipedia, that tyrosine and iodine are a good combo because the iodation reaction with elemental iodine is pretty consistent and doesn't really need a enzyme... right? I could be totally wrong. Thank you for your time!

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NumberOfTheOrgoBeast t1_j97c1uh wrote

Phenyl rings and iodine go together like peanut butter and jelly, for reasons outside the scope of the question. For thyroid hormones though, an enzyme is used called thyroperoxidase which handles both the management of iodine's oxidation state, and its addition to tyrosine residues.

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