Chemoselective small molecules that covalently modify one lysine in a non-enzyme protein in plasma.
Chemoselective small molecules that covalently modify one lysine in a non-enzyme protein in plasma.
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DOI:
10.1038/nchembio.281
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发表时间:
2010-02
影响因子:
14.8
通讯作者:
Kelly JW
中科院分区:
文献类型:
--
作者:
Choi S;Connelly S;Reixach N;Wilson IA;Kelly JW
A small molecule that could bind selectively to and then react chemoselectively with a non-enzyme protein in a complex biological fluid, such as blood, could have numerous practical applications. Herein, we report a family of designed stilbenes that selectively and covalently modify the prominent plasma protein transthyretin in preference to more than 4000 other human plasma proteins. They react chemoselectively with only one of eight Lys ε-amino groups within transthyretin. The crystal structure confirms the expected binding orientation of the stilbene substructure and the anticipated conjugating amide bond. These covalent transthyretin kinetic stabilizers exhibit superior amyloid inhibition potency, compared to their non-covalent counterparts, and prevent cytotoxicity associated with amyloidogenesis. While there are a few prodrugs that, upon metabolic activation, react with a Cys residue inactivating a specific non-enzyme, we are unaware of designed small molecules that react with one Lys ε-amine within a specific non-enzyme in a complex biological fluid.
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通讯作者:
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