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Dual stop codon suppression in mammalian cells with genomically integrated genetic code expansion machinery.
Meineke, Birthe; Heimgärtner, Johannes; Caridha, Rozina; Block, Matthias F; Kimler, Kyle J; Pires, Maria F; Landreh, Michael; Elsässer, Simon J.
Afiliación
  • Meineke B; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden; Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, 17165 Stockholm, Sweden. Electronic address: birthe.meineke@
  • Heimgärtner J; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden; Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, 17165 Stockholm, Sweden.
  • Caridha R; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden; Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, 17165 Stockholm, Sweden.
  • Block MF; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden.
  • Kimler KJ; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden.
  • Pires MF; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden.
  • Landreh M; Department of Microbiology, Tumor and Cell Biology, Science for Life Laboratory, Karolinska Institutet, 17165 Stockholm, Sweden.
  • Elsässer SJ; Science for Life Laboratory, Karolinska Institutet, Department of Medical Biochemistry and Biophysics, Division of Genome Biology, 17165 Stockholm, Sweden; Ming Wai Lau Centre for Reparative Medicine, Stockholm Node, Karolinska Institutet, 17165 Stockholm, Sweden. Electronic address: simon.elsasser@
Cell Rep Methods ; 3(11): 100626, 2023 Nov 20.
Article en En | MEDLINE | ID: mdl-37935196
Stop codon suppression using dedicated tRNA/aminoacyl-tRNA synthetase (aaRS) pairs allows for genetically encoded, site-specific incorporation of non-canonical amino acids (ncAAs) as chemical handles for protein labeling and modification. Here, we demonstrate that piggyBac-mediated genomic integration of archaeal pyrrolysine tRNA (tRNAPyl)/pyrrolysyl-tRNA synthetase (PylRS) or bacterial tRNA/aaRS pairs, using a modular plasmid design with multi-copy tRNA arrays, allows for homogeneous and efficient genetically encoded ncAA incorporation in diverse mammalian cell lines. We assess opportunities and limitations of using ncAAs for fluorescent labeling applications in stable cell lines. We explore suppression of ochre and opal stop codons and finally incorporate two distinct ncAAs with mutually orthogonal click chemistries for site-specific, dual-fluorophore labeling of a cell surface receptor on live mammalian cells.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Código Genético / Aminoacil-ARNt Sintetasas Idioma: En Revista: Cell Rep Methods Año: 2023 Tipo del documento: Article Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Código Genético / Aminoacil-ARNt Sintetasas Idioma: En Revista: Cell Rep Methods Año: 2023 Tipo del documento: Article Pais de publicación: Estados Unidos