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-Structure paper
Title | Formation of thyroid hormone revealed by a cryo-EM structure of native bovine thyroglobulin. |
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Journal, issue, pages | Nat Commun, Vol. 13, Issue 1, Page 2380, Year 2022 |
Publish date | May 2, 2022 |
Authors | Nils Marechal / Banyuhay P Serrano / Xinyan Zhang / Charles J Weitz / |
PubMed Abstract | Thyroid hormones are essential regulators of metabolism, development, and growth. They are formed from pairs of iodinated tyrosine residues within the precursor thyroglobulin (TG), a 660-kDa ...Thyroid hormones are essential regulators of metabolism, development, and growth. They are formed from pairs of iodinated tyrosine residues within the precursor thyroglobulin (TG), a 660-kDa homodimer of the thyroid gland, by an oxidative coupling reaction. Tyrosine pairs that give rise to thyroid hormones have been assigned within the structure of human TG, but the process of hormone formation is poorly understood. Here we report a ~3.3-Å cryo-EM structure of native bovine TG with nascent thyroid hormone formed at one of the predicted hormonogenic sites. Local structural rearrangements provide insight into mechanisms underlying thyroid hormone formation and stabilization. |
External links | Nat Commun / PubMed:35501346 / PubMed Central |
Methods | EM (single particle) |
Resolution | 3.3 Å |
Structure data | EMDB-14145, PDB-7qtq: |
Chemicals | ChemComp-NAG: |
Source |
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Keywords | HORMONE / Thyroglobulin / thyroid hormone / iodine / precursor |