Is Halogen Bonding the Basis for Iodothyronine Deiodinase Activity?

被引：66

作者：

Bayse, Craig A. ^{[1
]}

Rafferty, Erin R. ^{[1
]}

机构：

[1] Old Dominion Univ, Dept Chem & Biochem, Norfolk, VA 23529 USA

来源：

INORGANIC CHEMISTRY | 2010年 / 49卷 / 12期

关键词：

SELENIUM; RECOGNITION; ORIGIN;

D O I：

10.1021/ic100711n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Density functional theory studies of S center dot center dot center dot X and Se center dot center dot center dot X (X = Br, I) halogen-bonding interactions are used to interpret the selection of selenium and iodine for thyroid hormone signaling. A new mechanism for dehalogenation in terms of halogen bonding is proposed. The, activation barriers for deiodination of an aromatic iodide by MeSeH and MeSH (17.6 and 19.8 kcal/mol) are consistent with the relative rates, of deiodination by iodothyronine deiodinase and its cysteine mutant.

引用

页码：5365 / 5367

页数：3

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