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Controlled enzymatic synthesis of natural-linkage, defined-length polyubiquitin chains using lysines with removable protecting groups.
Chemical Communications ( IF 4.3 ) Pub Date : 2011 Feb 21 , DOI: 10.1039/c0cc04868b
Carlos A Castañeda 1 , Jia Liu , Tanuja R Kashyap , Rajesh K Singh , David Fushman , T Ashton Cropp
Affiliation  

E2 enzymes catalyze the ATP-dependent polymerization of polyubiquitin chains which function as molecular signals in the regulation of numerous cellular processes. Here we present a method that uses genetically encoded unnatural amino acids to halt and re-start ubiquitin polymerization providing access to natural-linkage, precision-length ubiquitin chains that can be used for biochemical, structural, and dynamics studies.

中文翻译:

使用具有可移除保护基团的赖氨酸,控制酶促合成天然连接、确定长度的多聚泛素链。

E2 酶催化多泛素链的 ATP 依赖性聚合,其在众多细胞过程的调节中作为分子信号起作用。在这里,我们提出了一种方法,该方法使用基因编码的非天然氨基酸来停止和重新启动泛素聚合,从而提供可用于生物化学、结构和动力学研究的天然连接、精确长度的泛素链。
更新日期:2017-01-31
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