Expanding the Structural Diversity of Protein Building Blocks with Noncanonical Amino Acids Biosynthesized from Aromatic Thiols
作者:Yong Wang、Xiaoxu Chen、Wenkang Cai、Linzhi Tan、Yutong Yu、Boyang Han、Yuxuan Li、Yuanzhe Xie、Yeyu Su、Xiaozhou Luo、Tao Liu
DOI:10.1002/anie.202014540
日期:2021.4.26
accessible aromatic thiols. We demonstrate that nearly 50 ncAAs with a diverse array of structures can be biosynthesized from these simple small‐molecule precursors by hijacking the cysteine biosynthetic enzymes, and the resulting ncAAs can subsequently be incorporated into proteins via an expanded genetic code. Moreover, we demonstrate that bioorthogonal reactive groups such as aromatic azides and
将结构新颖的非规范氨基酸 (ncAAs) 结合到蛋白质中对于科学和生物医学应用都很有价值。为了扩大可用 ncAAs 的结构多样性并减轻化学合成它们的负担,我们开发了一种通用且简单的生物合成方法,通过用经济的市售或合成可获得的芳香硫醇喂养细胞,将新型 ncAAs 基因编码为重组蛋白。我们证明,通过劫持半胱氨酸生物合成酶,可以从这些简单的小分子前体生物合成近 50 种具有多种结构的 ncAAs,随后可以通过扩展的遗传密码将生成的 ncAAs 整合到蛋白质中。而且,