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Expanding the genetic code of Mus musculus.


ABSTRACT: Here we report the expansion of the genetic code of Mus musculus with various unnatural amino acids including N?-acetyl-lysine. Stable integration of transgenes encoding an engineered N?-acetyl-lysyl-tRNA synthetase (AcKRS)/tRNAPyl pair into the mouse genome enables site-specific incorporation of unnatural amino acids into a target protein in response to the amber codon. We demonstrate temporal and spatial control of protein acetylation in various organs of the transgenic mouse using a recombinant green fluorescent protein (GFPuv) as a model protein. This strategy will provide a powerful tool for systematic in vivo study of cellular proteins in the most commonly used mammalian model organism for human physiology and disease.

SUBMITTER: Han S 

PROVIDER: S-EPMC5321798 | biostudies-other | 2017 Feb

REPOSITORIES: biostudies-other

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Expanding the genetic code of Mus musculus.

Han Songmi S   Yang Aerin A   Lee Soonjang S   Lee Han-Woong HW   Park Chan Bae CB   Park Hee-Sung HS  

Nature communications 20170221


Here we report the expansion of the genetic code of Mus musculus with various unnatural amino acids including N<sup>ɛ</sup>-acetyl-lysine. Stable integration of transgenes encoding an engineered N<sup>ɛ</sup>-acetyl-lysyl-tRNA synthetase (AcKRS)/tRNA<sup>Pyl</sup> pair into the mouse genome enables site-specific incorporation of unnatural amino acids into a target protein in response to the amber codon. We demonstrate temporal and spatial control of protein acetylation in various organs of the t  ...[more]

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