Structure and Synthesis - SMC Faculty Home Pages

Thyroid hormones, T3 and T4, are not derived from cholesterol but are made up of iodine (of course) and amino acids and are lipid soluble. For both steroid and thyroid hormones, binding of the hormone-receptor complex with DNA triggers transcription of a target gene to mRNA, which moves to the cytosol and directs protein synthesis by ribosomes. ................
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