Genetically Encoded Protein Phosphorylation in Mammalian Cells.
Genetically Encoded Protein Phosphorylation in Mammalian Cells.
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哺乳动物细胞中遗传编码的蛋白质磷酸化。
DOI:
10.1016/j.chembiol.2018.05.013
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发表时间:
2018-09-20
影响因子:
8.6
通讯作者:
Chin JW
中科院分区:
文献类型:
--
作者:
Beránek V;Reinkemeier CD;Zhang MS;Liang AD;Kym G;Chin JW
Protein phosphorylation regulates diverse processes in eukaryotic cells. Strategies for installing site-specific phosphorylation in target proteins in eukaryotic cells, through routes that are orthogonal to enzymatic post-translational modification, would provide a powerful route for defining the consequences of particular phosphorylations. Here we show that the SepRSv1.0/tRNAv1.0CUA pair (created from the Methanococcus maripaludis phosphoseryl-transfer RNA synthetase [MmSepRS]/Methanococcus janaschii [Mj]tRNAGCACys pair) is orthogonal in mammalian cells. We create a eukaryotic elongation factor 1 alpha (EF-1α) variant, EF-1α-Sep, that enhances phosphoserine incorporation, and combine this with a mutant of eRF1, and manipulations of the cell’s phosphoserine biosynthetic pathway, to enable the genetically encoded incorporation of phosphoserine and its non-hydrolyzable phosphonate analog. Using this approach we demonstrate synthetic activation of a protein kinase in mammalian cells. SepRSv1.0/tRNAv1.0CUA is an orthogonal pair in mammalian cells Phosphoserine is genetically directed into proteins in mammalian cells Phosphonate analog of phosphoserine is stably incorporated in mammalian cells Encoded phosphonate analog enables synthetic kinase activation Beránek et al. describe an aminoacyl-tRNA synthetase/tRNA pair that is orthogonal in mammalian cells. They demonstrate that this pair can be used to incorporate phosphoserine and a stable phosphonate analog. By encoding the phosphonate analog in a kinase activation loop, they synthetically activate the kinase.
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影响因子:
48
作者:
Elsässer SJ;Ernst RJ;Walker OS;Chin JW
通讯作者:
Chin JW
DOI:
10.15252/embj.201797902
发表时间:
2018-04-13
期刊:
The EMBO journal
影响因子:
--
作者:
Burgess SG;Mukherjee M;Sabir S;Joseph N;Gutiérrez-Caballero C;Richards MW;Huguenin-Dezot N;Chin JW;Kennedy EJ;Pfuhl M;Royle SJ;Gergely F;Bayliss R
通讯作者:
Bayliss R
影响因子:
16
作者:
Roberts-Galbraith RH;Ohi MD;Ballif BA;Chen JS;McLeod I;McDonald WH;Gygi SP;Yates JR 3rd;Gould KL
通讯作者:
Gould KL
影响因子:
4.8
作者:
Hauenstein, Scott I.;Hou, Ya-Ming;Perona, John J.
通讯作者:
Perona, John J.
影响因子:
46.9
作者:
Pédelacq, JD;Cabantous, S;Waldo, GS
通讯作者:
Waldo, GS