Conformational Flexibility and Halogen Bonding in Thyroid Hormones and Their Metabolites
作者:Santanu Mondal、Govindasamy Mugesh
DOI:10.1021/acs.cgd.6b00945
日期:2016.10.5
(TAMs) are endogenous thyroid hormone (TH) metabolites, which are proposed to be biosynthesized by decarboxylation of the β-alanine side chain of THs. Iodothyronine deiodinases (DIOs) mediate phenolic and tyrosyl ring deiodinations of thyroid hormones and play an important role in thyroid hormone homeostasis. These enzymes also accept iodothyronamines as substrates for deiodination, but the binding affinities
碘甲状腺素胺(TAMs)是内源性甲状腺激素(TH)代谢产物,被提议通过THs的β-丙氨酸侧链脱羧来生物合成。碘甲状腺素脱碘酶(DIOs)介导甲状腺激素的酚和酪氨酰环脱碘,并在甲状腺激素稳态中发挥重要作用。这些酶也接受碘代胸腺嘧啶作为脱碘的底物,但TAM与DIO的结合亲和力低于TH。在本文中,我们首次报告了使用单晶X射线研究在各种碘代乙胺中形成卤素键的情况。我们还描述了脱碘后TH和TAM结构发生的构象变化。