Incorporation of metal-chelating unnatural amino acids into halotag for allylic deamination
作者:Alina Stein、Alexandria Deliz Liang、Reyhan Sahin、Thomas R. Ward
DOI:10.1016/j.jorganchem.2022.122272
日期:2022.3
The potential of artificial metalloenzymes has led to an increase in interest for the design of novel metal-binding sites in proteins. Metal-chelating unnatural amino acids offer an auspicious solution to engineer active metal sites in a defined way. Herein, we describe the introduction of four metal-chelating unnatural amino acids into HaloTag, an attractive scaffold for the assembly of functional
人工金属酶的潜力导致人们对设计蛋白质中新型金属结合位点的兴趣增加。金属螯合非天然氨基酸为以明确的方式设计活性金属位点提供了一种吉祥的解决方案。在这里,我们描述了将四种金属螯合非天然氨基酸引入 HaloTag,这是一种用于组装功能性人工金属酶的有吸引力的支架。用 2-氨基-3-(8-羟基喹啉-5-基)丙酸 (HQ-Ala-1) 改造的 HaloTag 用于组装人工金属酶,以在与 [(η 5 -C 5 H ) 互补时改善烯丙基脱氨5 )Ru(MeCN) 3 ] + .