Biosynthesis and Genetic Incorporation of 3,4-Dihydroxy-L-Phenylalanine into Proteins in Escherichia coli.
Biosynthesis and Genetic Incorporation of 3,4-Dihydroxy-L-Phenylalanine into Proteins in Escherichia coli.
复制标题
DOI:
10.1016/j.jmb.2021.167412
复制
发表时间:
2022-04-30
影响因子:
5.6
通讯作者:
Xiao, Han
中科院分区:
文献类型:
--
作者:
Chen, Yuda;Loredo, Axel;Chung, Anna;Zhang, Mengxi;Liu, Rui;Xiao, Han
关键词:
While 20 canonical amino acids are used by most organisms for protein synthesis, the creation of cells that can use noncanonical amino acids (ncAAs) as additional protein building blocks holds great promise for preparing novel medicines and for studying complex questions in biological systems. However, only a small number of biosynthetic pathways for ncAAs have been reported to date, greatly restricting our ability to generate cells with ncAA building blocks. In this study, we report the creation of a completely autonomous bacterium that utilizes 3,4-dihydroxy-L-phenylalanine (DOPA) as its 21st amino acid building block. Like canonical amino acids, DOPA can be biosynthesized without exogenous addition and can be genetically incorporated into proteins in a site-specific manner. Equally important, the protein production yield of DOPA-containing proteins from these autonomous cells is greater than that of cells exogenously fed with 9 mM DOPA. The unique catechol moiety of DOPA can be used as a versatile handle for site-specific protein functionalizations via either oxidative coupling or strain-promoted oxidation-controlled cyclooctyne-1,2-quinone (SPOCQ) cycloaddition reactions. We further demonstrate the use of these autonomous cells in preparing fluorophore-labeled anti-human epidermal growth factor 2 (HER2) antibodies for the detection of HER2 expression on cancer cells.
登录
查看更多内容
影响因子:
16.6
作者:
Ding, Wenlong;Zhao, Hongxia;Lin, Shixian
通讯作者:
Lin, Shixian
影响因子:
15
作者:
Alfonta, L;Zhang, ZW;Schultz, PG
通讯作者:
Schultz, PG
影响因子:
4.7
作者:
Ayyadurai, Niraikulam;Prabhu, Nadarajan Saravanan;Yun, Hyungdon
通讯作者:
Yun, Hyungdon
影响因子:
7.8
作者:
Dien VT;Morris SE;Karadeema RJ;Romesberg FE
通讯作者:
Romesberg FE
影响因子:
4.9
作者:
Kim, Sanggil;Sung, Bong Hyun;Lee, Hyun Soo
通讯作者:
Lee, Hyun Soo