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A genetically encoded norbornene amino acid for the mild and selective modification of proteins in a copper-free click reaction

Kaya, E.; Vrabel, M.; Deiml, C.; Prill, S.; Fluxa, V.S.; Carell, T.

Angewandte Chemie 51(18): 4466-4469

2012


ISSN/ISBN: 1521-3773
PMID: 22438179
DOI: 10.1002/anie.201109252
Accession: 051140005

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Built in for clicks: A specially evolved pyrrolysyl-t Rna synthetase from Methanosarcina mazei was used to incorporate a norbornene amino acid into proteins in E. coli. This unit can be site-selectively modified under mild physiological conditions using a [3+2] cycloaddition reaction with nitrile imines (see scheme).

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