Journal
NATURE CHEMICAL BIOLOGY
Volume 16, Issue 4, Pages 379-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41589-020-0493-1
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Funding
- National Institutes of Health [R01GM124319, R01GM126220, 1R01GM118431, 1R01GM117004]
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Tyrosine sulfation is an important post-translational modification found in higher eukaryotes. Here we report an engineered tyrosyl-tRNA synthetase/tRNA pair that co-translationally incorporates O-sulfotyrosine in response to UAG codons in Escherichia coli and mammalian cells. This platform enables recombinant expression of eukaryotic proteins homogeneously sulfated at chosen sites, which was demonstrated by expressing human heparin cofactor II in mammalian cells in different states of sulfation.
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